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Finding the Third Proportional to 15,912 and 36,988

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Solution

The third proportional to 15,912 and 36,988 is: 85,979.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,912 : 36,988 = 36,988 : x
  2. Step 2: Convert to fraction form
    15,912/36,988 = 36,988/x
  3. Step 3: Cross multiply
    15,912x = 36,988 × 36,988
  4. Step 4: Simplify right side
    15,912x = 1,368,112,144
  5. Step 5: Solve for x
    x = 1,368,112,144/15,912
  6. Step 6: Final answer
    x = 85,979.90

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.