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Finding the Third Proportional to 7,177.50 and 13,617

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Solution

The third proportional to 7,177.50 and 13,617 is: 25,833.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,177.50 : 13,617 = 13,617 : x
  2. Step 2: Convert to fraction form
    7,177.50/13,617 = 13,617/x
  3. Step 3: Cross multiply
    7,177.50x = 13,617 × 13,617
  4. Step 4: Simplify right side
    7,177.50x = 185,422,689
  5. Step 5: Solve for x
    x = 185,422,689/7,177.50
  6. Step 6: Final answer
    x = 25,833.88

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Why These Related Problems?

These problems maintain the same ratio (1.90) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.