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Finding the Third Proportional to 7,187.91 and 15,641.44

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Solution

The third proportional to 7,187.91 and 15,641.44 is: 34,036.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,187.91 : 15,641.44 = 15,641.44 : x
  2. Step 2: Convert to fraction form
    7,187.91/15,641.44 = 15,641.44/x
  3. Step 3: Cross multiply
    7,187.91x = 15,641.44 × 15,641.44
  4. Step 4: Simplify right side
    7,187.91x = 244,654,567.07
  5. Step 5: Solve for x
    x = 244,654,567.07/7,187.91
  6. Step 6: Final answer
    x = 34,036.97

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.