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Finding the Fourth Proportional to 5,803.76, 8,009.21 and 3,151.18

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Solution

The fourth proportional to 5,803.76, 8,009.21 and 3,151.18 is: 4,348.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,803.76 : 8,009.21 = 3,151.18 : x
  2. Step 2: Convert to fraction form
    5,803.76/8,009.21 = 3,151.18/x
  3. Step 3: Cross multiply
    5,803.76x = 8,009.21 × 3,151.18
  4. Step 4: Simplify right side
    5,803.76x = 25,238,462.37
  5. Step 5: Solve for x
    x = 25,238,462.37/5,803.76
  6. Step 6: Final answer
    x = 4,348.64

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Half scale
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Double scale
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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.