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Finding the Fourth Proportional to 63,981.92, 88,294.92 and 35,685.92

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Solution

The fourth proportional to 63,981.92, 88,294.92 and 35,685.92 is: 49,246.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,981.92 : 88,294.92 = 35,685.92 : x
  2. Step 2: Convert to fraction form
    63,981.92/88,294.92 = 35,685.92/x
  3. Step 3: Cross multiply
    63,981.92x = 88,294.92 × 35,685.92
  4. Step 4: Simplify right side
    63,981.92x = 3,150,885,451.53
  5. Step 5: Solve for x
    x = 3,150,885,451.53/63,981.92
  6. Step 6: Final answer
    x = 49,246.50

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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.