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Finding the Third Proportional to 723.50 and 1,569

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Solution

The third proportional to 723.50 and 1,569 is: 3,402.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    723.50 : 1,569 = 1,569 : x
  2. Step 2: Convert to fraction form
    723.50/1,569 = 1,569/x
  3. Step 3: Cross multiply
    723.50x = 1,569 × 1,569
  4. Step 4: Simplify right side
    723.50x = 2,461,761
  5. Step 5: Solve for x
    x = 2,461,761/723.50
  6. Step 6: Final answer
    x = 3,402.57

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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.