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Finding the Fourth Proportional to 45,351.09, 67,951.31 and 15,752.88

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Solution

The fourth proportional to 45,351.09, 67,951.31 and 15,752.88 is: 23,603.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,351.09 : 67,951.31 = 15,752.88 : x
  2. Step 2: Convert to fraction form
    45,351.09/67,951.31 = 15,752.88/x
  3. Step 3: Cross multiply
    45,351.09x = 67,951.31 × 15,752.88
  4. Step 4: Simplify right side
    45,351.09x = 1,070,428,753.51
  5. Step 5: Solve for x
    x = 1,070,428,753.51/45,351.09
  6. Step 6: Final answer
    x = 23,603.15

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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.