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Finding the Fourth Proportional to 1,025.47, 1,537.25 and 562.87

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Solution

The fourth proportional to 1,025.47, 1,537.25 and 562.87 is: 843.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025.47 : 1,537.25 = 562.87 : x
  2. Step 2: Convert to fraction form
    1,025.47/1,537.25 = 562.87/x
  3. Step 3: Cross multiply
    1,025.47x = 1,537.25 × 562.87
  4. Step 4: Simplify right side
    1,025.47x = 865,269.09
  5. Step 5: Solve for x
    x = 865,269.09/1,025.47
  6. Step 6: Final answer
    x = 843.78

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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.