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Finding the Fourth Proportional to 44,508.97, 66,761.56 and 12,918.97

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Solution

The fourth proportional to 44,508.97, 66,761.56 and 12,918.97 is: 19,377.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,508.97 : 66,761.56 = 12,918.97 : x
  2. Step 2: Convert to fraction form
    44,508.97/66,761.56 = 12,918.97/x
  3. Step 3: Cross multiply
    44,508.97x = 66,761.56 × 12,918.97
  4. Step 4: Simplify right side
    44,508.97x = 862,490,590.79
  5. Step 5: Solve for x
    x = 862,490,590.79/44,508.97
  6. Step 6: Final answer
    x = 19,377.90

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1.5x scale

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.