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Finding the Third Proportional to 498.75 and 752.63

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Solution

The third proportional to 498.75 and 752.63 is: 1,135.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    498.75 : 752.63 = 752.63 : x
  2. Step 2: Convert to fraction form
    498.75/752.63 = 752.63/x
  3. Step 3: Cross multiply
    498.75x = 752.63 × 752.63
  4. Step 4: Simplify right side
    498.75x = 566,444.39
  5. Step 5: Solve for x
    x = 566,444.39/498.75
  6. Step 6: Final answer
    x = 1,135.73

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.