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Finding the Third Proportional to 61,418 and 93,891

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Solution

The third proportional to 61,418 and 93,891 is: 143,533.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,418 : 93,891 = 93,891 : x
  2. Step 2: Convert to fraction form
    61,418/93,891 = 93,891/x
  3. Step 3: Cross multiply
    61,418x = 93,891 × 93,891
  4. Step 4: Simplify right side
    61,418x = 8,815,519,881
  5. Step 5: Solve for x
    x = 8,815,519,881/61,418
  6. Step 6: Final answer
    x = 143,533.16

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.