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Finding the Fourth Proportional to 49,776.78, 74,672.49 and 14,711.88

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Solution

The fourth proportional to 49,776.78, 74,672.49 and 14,711.88 is: 22,069.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,776.78 : 74,672.49 = 14,711.88 : x
  2. Step 2: Convert to fraction form
    49,776.78/74,672.49 = 14,711.88/x
  3. Step 3: Cross multiply
    49,776.78x = 74,672.49 × 14,711.88
  4. Step 4: Simplify right side
    49,776.78x = 1,098,572,712.18
  5. Step 5: Solve for x
    x = 1,098,572,712.18/49,776.78
  6. Step 6: Final answer
    x = 22,069.98

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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.