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Finding the Third Proportional to 10,248.75 and 15,315.75

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Solution

The third proportional to 10,248.75 and 15,315.75 is: 22,887.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,248.75 : 15,315.75 = 15,315.75 : x
  2. Step 2: Convert to fraction form
    10,248.75/15,315.75 = 15,315.75/x
  3. Step 3: Cross multiply
    10,248.75x = 15,315.75 × 15,315.75
  4. Step 4: Simplify right side
    10,248.75x = 234,572,198.06
  5. Step 5: Solve for x
    x = 234,572,198.06/10,248.75
  6. Step 6: Final answer
    x = 22,887.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.