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Finding the Fourth Proportional to 53,781.92, 80,683.11 and 25,704.17

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Solution

The fourth proportional to 53,781.92, 80,683.11 and 25,704.17 is: 38,561.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,781.92 : 80,683.11 = 25,704.17 : x
  2. Step 2: Convert to fraction form
    53,781.92/80,683.11 = 25,704.17/x
  3. Step 3: Cross multiply
    53,781.92x = 80,683.11 × 25,704.17
  4. Step 4: Simplify right side
    53,781.92x = 2,073,891,972.15
  5. Step 5: Solve for x
    x = 2,073,891,972.15/53,781.92
  6. Step 6: Final answer
    x = 38,561.14

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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.