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Finding the Fourth Proportional to 42,403.50, 63,614.97 and 14,701.50

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Solution

The fourth proportional to 42,403.50, 63,614.97 and 14,701.50 is: 22,055.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,403.50 : 63,614.97 = 14,701.50 : x
  2. Step 2: Convert to fraction form
    42,403.50/63,614.97 = 14,701.50/x
  3. Step 3: Cross multiply
    42,403.50x = 63,614.97 × 14,701.50
  4. Step 4: Simplify right side
    42,403.50x = 935,235,481.46
  5. Step 5: Solve for x
    x = 935,235,481.46/42,403.50
  6. Step 6: Final answer
    x = 22,055.62

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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.