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Finding the Third Proportional to 45,726.75 and 68,712

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Solution

The third proportional to 45,726.75 and 68,712 is: 103,251.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,726.75 : 68,712 = 68,712 : x
  2. Step 2: Convert to fraction form
    45,726.75/68,712 = 68,712/x
  3. Step 3: Cross multiply
    45,726.75x = 68,712 × 68,712
  4. Step 4: Simplify right side
    45,726.75x = 4,721,338,944
  5. Step 5: Solve for x
    x = 4,721,338,944/45,726.75
  6. Step 6: Final answer
    x = 103,251.14

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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.