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Finding the Fourth Proportional to 44,691.54, 67,051.88 and 21,314.94

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Solution

The fourth proportional to 44,691.54, 67,051.88 and 21,314.94 is: 31,979.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,691.54 : 67,051.88 = 21,314.94 : x
  2. Step 2: Convert to fraction form
    44,691.54/67,051.88 = 21,314.94/x
  3. Step 3: Cross multiply
    44,691.54x = 67,051.88 × 21,314.94
  4. Step 4: Simplify right side
    44,691.54x = 1,429,206,799.09
  5. Step 5: Solve for x
    x = 1,429,206,799.09/44,691.54
  6. Step 6: Final answer
    x = 31,979.36

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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.