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Finding the Third Proportional to 7,462.75 and 15,642.50

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Solution

The third proportional to 7,462.75 and 15,642.50 is: 32,787.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,462.75 : 15,642.50 = 15,642.50 : x
  2. Step 2: Convert to fraction form
    7,462.75/15,642.50 = 15,642.50/x
  3. Step 3: Cross multiply
    7,462.75x = 15,642.50 × 15,642.50
  4. Step 4: Simplify right side
    7,462.75x = 244,687,806.25
  5. Step 5: Solve for x
    x = 244,687,806.25/7,462.75
  6. Step 6: Final answer
    x = 32,787.89

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.