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Finding the Third Proportional to 517.88 and 1,132.88

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Solution

The third proportional to 517.88 and 1,132.88 is: 2,478.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    517.88 : 1,132.88 = 1,132.88 : x
  2. Step 2: Convert to fraction form
    517.88/1,132.88 = 1,132.88/x
  3. Step 3: Cross multiply
    517.88x = 1,132.88 × 1,132.88
  4. Step 4: Simplify right side
    517.88x = 1,283,405.77
  5. Step 5: Solve for x
    x = 1,283,405.77/517.88
  6. Step 6: Final answer
    x = 2,478.22

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.