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Finding the Fourth Proportional to 8,321.62, 11,483.75 and 4,544.76

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Solution

The fourth proportional to 8,321.62, 11,483.75 and 4,544.76 is: 6,271.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321.62 : 11,483.75 = 4,544.76 : x
  2. Step 2: Convert to fraction form
    8,321.62/11,483.75 = 4,544.76/x
  3. Step 3: Cross multiply
    8,321.62x = 11,483.75 × 4,544.76
  4. Step 4: Simplify right side
    8,321.62x = 52,190,887.65
  5. Step 5: Solve for x
    x = 52,190,887.65/8,321.62
  6. Step 6: Final answer
    x = 6,271.72

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Find fourth proportional to 4,160.81, 5,741.88 and 2,272.38
Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.