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Finding the Fourth Proportional to 44,691.16, 67,045.40 and 16,987

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Solution

The fourth proportional to 44,691.16, 67,045.40 and 16,987 is: 25,483.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,691.16 : 67,045.40 = 16,987 : x
  2. Step 2: Convert to fraction form
    44,691.16/67,045.40 = 16,987/x
  3. Step 3: Cross multiply
    44,691.16x = 67,045.40 × 16,987
  4. Step 4: Simplify right side
    44,691.16x = 1,138,900,209.80
  5. Step 5: Solve for x
    x = 1,138,900,209.80/44,691.16
  6. Step 6: Final answer
    x = 25,483.79

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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.