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Finding the Third Proportional to 1,147.96 and 2,488.14

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Solution

The third proportional to 1,147.96 and 2,488.14 is: 5,392.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147.96 : 2,488.14 = 2,488.14 : x
  2. Step 2: Convert to fraction form
    1,147.96/2,488.14 = 2,488.14/x
  3. Step 3: Cross multiply
    1,147.96x = 2,488.14 × 2,488.14
  4. Step 4: Simplify right side
    1,147.96x = 6,190,838.91
  5. Step 5: Solve for x
    x = 6,190,838.91/1,147.96
  6. Step 6: Final answer
    x = 5,392.90

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.