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Finding the Third Proportional to 925.13 and 1,986.88

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Solution

The third proportional to 925.13 and 1,986.88 is: 4,267.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    925.13 : 1,986.88 = 1,986.88 : x
  2. Step 2: Convert to fraction form
    925.13/1,986.88 = 1,986.88/x
  3. Step 3: Cross multiply
    925.13x = 1,986.88 × 1,986.88
  4. Step 4: Simplify right side
    925.13x = 3,947,672.27
  5. Step 5: Solve for x
    x = 3,947,672.27/925.13
  6. Step 6: Final answer
    x = 4,267.18

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.