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Finding the Third Proportional to 61,332 and 86,346

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Solution

The third proportional to 61,332 and 86,346 is: 121,561.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,332 : 86,346 = 86,346 : x
  2. Step 2: Convert to fraction form
    61,332/86,346 = 86,346/x
  3. Step 3: Cross multiply
    61,332x = 86,346 × 86,346
  4. Step 4: Simplify right side
    61,332x = 7,455,631,716
  5. Step 5: Solve for x
    x = 7,455,631,716/61,332
  6. Step 6: Final answer
    x = 121,561.86

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.