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Finding the Fourth Proportional to 5,921.29, 8,881.92 and 5,560.42

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Solution

The fourth proportional to 5,921.29, 8,881.92 and 5,560.42 is: 8,340.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921.29 : 8,881.92 = 5,560.42 : x
  2. Step 2: Convert to fraction form
    5,921.29/8,881.92 = 5,560.42/x
  3. Step 3: Cross multiply
    5,921.29x = 8,881.92 × 5,560.42
  4. Step 4: Simplify right side
    5,921.29x = 49,387,205.61
  5. Step 5: Solve for x
    x = 49,387,205.61/5,921.29
  6. Step 6: Final answer
    x = 8,340.62

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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.