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Finding the Third Proportional to 471.63 and 731.13

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Solution

The third proportional to 471.63 and 731.13 is: 1,133.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    471.63 : 731.13 = 731.13 : x
  2. Step 2: Convert to fraction form
    471.63/731.13 = 731.13/x
  3. Step 3: Cross multiply
    471.63x = 731.13 × 731.13
  4. Step 4: Simplify right side
    471.63x = 534,543.77
  5. Step 5: Solve for x
    x = 534,543.77/471.63
  6. Step 6: Final answer
    x = 1,133.41

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.