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Finding the Third Proportional to 60,018.75 and 87,561

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Solution

The third proportional to 60,018.75 and 87,561 is: 127,742.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,018.75 : 87,561 = 87,561 : x
  2. Step 2: Convert to fraction form
    60,018.75/87,561 = 87,561/x
  3. Step 3: Cross multiply
    60,018.75x = 87,561 × 87,561
  4. Step 4: Simplify right side
    60,018.75x = 7,666,928,721
  5. Step 5: Solve for x
    x = 7,666,928,721/60,018.75
  6. Step 6: Final answer
    x = 127,742.23

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.