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Finding the Third Proportional to 723.94 and 1,116.28

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Solution

The third proportional to 723.94 and 1,116.28 is: 1,721.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    723.94 : 1,116.28 = 1,116.28 : x
  2. Step 2: Convert to fraction form
    723.94/1,116.28 = 1,116.28/x
  3. Step 3: Cross multiply
    723.94x = 1,116.28 × 1,116.28
  4. Step 4: Simplify right side
    723.94x = 1,246,083.83
  5. Step 5: Solve for x
    x = 1,246,083.83/723.94
  6. Step 6: Final answer
    x = 1,721.26

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.