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Finding the Third Proportional to 502.25 and 1,087

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Solution

The third proportional to 502.25 and 1,087 is: 2,352.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    502.25 : 1,087 = 1,087 : x
  2. Step 2: Convert to fraction form
    502.25/1,087 = 1,087/x
  3. Step 3: Cross multiply
    502.25x = 1,087 × 1,087
  4. Step 4: Simplify right side
    502.25x = 1,181,569
  5. Step 5: Solve for x
    x = 1,181,569/502.25
  6. Step 6: Final answer
    x = 2,352.55

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.