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Finding the Third Proportional to 61,688 and 92,988

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Solution

The third proportional to 61,688 and 92,988 is: 140,169.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,688 : 92,988 = 92,988 : x
  2. Step 2: Convert to fraction form
    61,688/92,988 = 92,988/x
  3. Step 3: Cross multiply
    61,688x = 92,988 × 92,988
  4. Step 4: Simplify right side
    61,688x = 8,646,768,144
  5. Step 5: Solve for x
    x = 8,646,768,144/61,688
  6. Step 6: Final answer
    x = 140,169.37

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.