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Finding the Fourth Proportional to 5,414.56, 7,472.10 and 2,930.56

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Solution

The fourth proportional to 5,414.56, 7,472.10 and 2,930.56 is: 4,044.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,414.56 : 7,472.10 = 2,930.56 : x
  2. Step 2: Convert to fraction form
    5,414.56/7,472.10 = 2,930.56/x
  3. Step 3: Cross multiply
    5,414.56x = 7,472.10 × 2,930.56
  4. Step 4: Simplify right side
    5,414.56x = 21,897,437.38
  5. Step 5: Solve for x
    x = 21,897,437.38/5,414.56
  6. Step 6: Final answer
    x = 4,044.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.