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Finding the Third Proportional to 39,992 and 58,688

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Solution

The third proportional to 39,992 and 58,688 is: 86,124.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,992 : 58,688 = 58,688 : x
  2. Step 2: Convert to fraction form
    39,992/58,688 = 58,688/x
  3. Step 3: Cross multiply
    39,992x = 58,688 × 58,688
  4. Step 4: Simplify right side
    39,992x = 3,444,281,344
  5. Step 5: Solve for x
    x = 3,444,281,344/39,992
  6. Step 6: Final answer
    x = 86,124.26

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.