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Finding the Third Proportional to 51,472.50 and 77,760.75

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Solution

The third proportional to 51,472.50 and 77,760.75 is: 117,475.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,472.50 : 77,760.75 = 77,760.75 : x
  2. Step 2: Convert to fraction form
    51,472.50/77,760.75 = 77,760.75/x
  3. Step 3: Cross multiply
    51,472.50x = 77,760.75 × 77,760.75
  4. Step 4: Simplify right side
    51,472.50x = 6,046,734,240.56
  5. Step 5: Solve for x
    x = 6,046,734,240.56/51,472.50
  6. Step 6: Final answer
    x = 117,475.04

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.