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Finding the Fourth Proportional to 63,811.13, 88,035.74 and 63,712.71

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Solution

The fourth proportional to 63,811.13, 88,035.74 and 63,712.71 is: 87,899.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,811.13 : 88,035.74 = 63,712.71 : x
  2. Step 2: Convert to fraction form
    63,811.13/88,035.74 = 63,712.71/x
  3. Step 3: Cross multiply
    63,811.13x = 88,035.74 × 63,712.71
  4. Step 4: Simplify right side
    63,811.13x = 5,608,995,253.69
  5. Step 5: Solve for x
    x = 5,608,995,253.69/63,811.13
  6. Step 6: Final answer
    x = 87,899.96

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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.