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Finding the Third Proportional to 723.30 and 1,574.75

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Solution

The third proportional to 723.30 and 1,574.75 is: 3,428.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    723.30 : 1,574.75 = 1,574.75 : x
  2. Step 2: Convert to fraction form
    723.30/1,574.75 = 1,574.75/x
  3. Step 3: Cross multiply
    723.30x = 1,574.75 × 1,574.75
  4. Step 4: Simplify right side
    723.30x = 2,479,849.87
  5. Step 5: Solve for x
    x = 2,479,849.87/723.30
  6. Step 6: Final answer
    x = 3,428.50

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.