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Finding the Fourth Proportional to 62,711.77, 86,582.78 and 38,863.75

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Solution

The fourth proportional to 62,711.77, 86,582.78 and 38,863.75 is: 53,657.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,711.77 : 86,582.78 = 38,863.75 : x
  2. Step 2: Convert to fraction form
    62,711.77/86,582.78 = 38,863.75/x
  3. Step 3: Cross multiply
    62,711.77x = 86,582.78 × 38,863.75
  4. Step 4: Simplify right side
    62,711.77x = 3,364,931,516.23
  5. Step 5: Solve for x
    x = 3,364,931,516.23/62,711.77
  6. Step 6: Final answer
    x = 53,657.10

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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.