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Finding the Third Proportional to 458.75 and 1,173.88

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Solution

The third proportional to 458.75 and 1,173.88 is: 3,003.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    458.75 : 1,173.88 = 1,173.88 : x
  2. Step 2: Convert to fraction form
    458.75/1,173.88 = 1,173.88/x
  3. Step 3: Cross multiply
    458.75x = 1,173.88 × 1,173.88
  4. Step 4: Simplify right side
    458.75x = 1,377,982.52
  5. Step 5: Solve for x
    x = 1,377,982.52/458.75
  6. Step 6: Final answer
    x = 3,003.78

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Why These Related Problems?

These problems maintain the same ratio (2.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.