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Finding the Fourth Proportional to 5,757.47, 8,591.30 and 5,136.91

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Solution

The fourth proportional to 5,757.47, 8,591.30 and 5,136.91 is: 7,665.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,757.47 : 8,591.30 = 5,136.91 : x
  2. Step 2: Convert to fraction form
    5,757.47/8,591.30 = 5,136.91/x
  3. Step 3: Cross multiply
    5,757.47x = 8,591.30 × 5,136.91
  4. Step 4: Simplify right side
    5,757.47x = 44,132,713.40
  5. Step 5: Solve for x
    x = 44,132,713.40/5,757.47
  6. Step 6: Final answer
    x = 7,665.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.