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Finding the Fourth Proportional to 5,747.73, 8,621.42 and 1,587.99

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Solution

The fourth proportional to 5,747.73, 8,621.42 and 1,587.99 is: 2,381.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,747.73 : 8,621.42 = 1,587.99 : x
  2. Step 2: Convert to fraction form
    5,747.73/8,621.42 = 1,587.99/x
  3. Step 3: Cross multiply
    5,747.73x = 8,621.42 × 1,587.99
  4. Step 4: Simplify right side
    5,747.73x = 13,690,728.75
  5. Step 5: Solve for x
    x = 13,690,728.75/5,747.73
  6. Step 6: Final answer
    x = 2,381.94

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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.