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Finding the Third Proportional to 972.56 and 1,479.19

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Solution

The third proportional to 972.56 and 1,479.19 is: 2,249.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    972.56 : 1,479.19 = 1,479.19 : x
  2. Step 2: Convert to fraction form
    972.56/1,479.19 = 1,479.19/x
  3. Step 3: Cross multiply
    972.56x = 1,479.19 × 1,479.19
  4. Step 4: Simplify right side
    972.56x = 2,187,995.66
  5. Step 5: Solve for x
    x = 2,187,995.66/972.56
  6. Step 6: Final answer
    x = 2,249.72

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.