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Finding the Third Proportional to 61,221.75 and 93,645

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Solution

The third proportional to 61,221.75 and 93,645 is: 143,239.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,221.75 : 93,645 = 93,645 : x
  2. Step 2: Convert to fraction form
    61,221.75/93,645 = 93,645/x
  3. Step 3: Cross multiply
    61,221.75x = 93,645 × 93,645
  4. Step 4: Simplify right side
    61,221.75x = 8,769,386,025
  5. Step 5: Solve for x
    x = 8,769,386,025/61,221.75
  6. Step 6: Final answer
    x = 143,239.72

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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.