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Finding the Fourth Proportional to 5,125.10, 7,687.65 and 5,052.20

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Solution

The fourth proportional to 5,125.10, 7,687.65 and 5,052.20 is: 7,578.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.10 : 7,687.65 = 5,052.20 : x
  2. Step 2: Convert to fraction form
    5,125.10/7,687.65 = 5,052.20/x
  3. Step 3: Cross multiply
    5,125.10x = 7,687.65 × 5,052.20
  4. Step 4: Simplify right side
    5,125.10x = 38,839,545.33
  5. Step 5: Solve for x
    x = 38,839,545.33/5,125.10
  6. Step 6: Final answer
    x = 7,578.30

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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.