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Finding the Fourth Proportional to 7,462.80, 11,194.20 and 6,627.60

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Solution

The fourth proportional to 7,462.80, 11,194.20 and 6,627.60 is: 9,941.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,462.80 : 11,194.20 = 6,627.60 : x
  2. Step 2: Convert to fraction form
    7,462.80/11,194.20 = 6,627.60/x
  3. Step 3: Cross multiply
    7,462.80x = 11,194.20 × 6,627.60
  4. Step 4: Simplify right side
    7,462.80x = 74,190,679.92
  5. Step 5: Solve for x
    x = 74,190,679.92/7,462.80
  6. Step 6: Final answer
    x = 9,941.40

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.