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Finding the Fourth Proportional to 1,132.52, 1,562.53 and 713.29

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Solution

The fourth proportional to 1,132.52, 1,562.53 and 713.29 is: 984.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132.52 : 1,562.53 = 713.29 : x
  2. Step 2: Convert to fraction form
    1,132.52/1,562.53 = 713.29/x
  3. Step 3: Cross multiply
    1,132.52x = 1,562.53 × 713.29
  4. Step 4: Simplify right side
    1,132.52x = 1,114,537.02
  5. Step 5: Solve for x
    x = 1,114,537.02/1,132.52
  6. Step 6: Final answer
    x = 984.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.