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Finding the Third Proportional to 45,312.75 and 67,911.75

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Solution

The third proportional to 45,312.75 and 67,911.75 is: 101,781.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,312.75 : 67,911.75 = 67,911.75 : x
  2. Step 2: Convert to fraction form
    45,312.75/67,911.75 = 67,911.75/x
  3. Step 3: Cross multiply
    45,312.75x = 67,911.75 × 67,911.75
  4. Step 4: Simplify right side
    45,312.75x = 4,612,005,788.06
  5. Step 5: Solve for x
    x = 4,612,005,788.06/45,312.75
  6. Step 6: Final answer
    x = 101,781.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.