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Finding the Fourth Proportional to 63,128.16, 94,692.24 and 16,387.92

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Solution

The fourth proportional to 63,128.16, 94,692.24 and 16,387.92 is: 24,581.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,128.16 : 94,692.24 = 16,387.92 : x
  2. Step 2: Convert to fraction form
    63,128.16/94,692.24 = 16,387.92/x
  3. Step 3: Cross multiply
    63,128.16x = 94,692.24 × 16,387.92
  4. Step 4: Simplify right side
    63,128.16x = 1,551,808,853.74
  5. Step 5: Solve for x
    x = 1,551,808,853.74/63,128.16
  6. Step 6: Final answer
    x = 24,581.88

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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.