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Finding the Third Proportional to 459.75 and 731.53

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Solution

The third proportional to 459.75 and 731.53 is: 1,163.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    459.75 : 731.53 = 731.53 : x
  2. Step 2: Convert to fraction form
    459.75/731.53 = 731.53/x
  3. Step 3: Cross multiply
    459.75x = 731.53 × 731.53
  4. Step 4: Simplify right side
    459.75x = 535,137.97
  5. Step 5: Solve for x
    x = 535,137.97/459.75
  6. Step 6: Final answer
    x = 1,163.98

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.