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Finding the Third Proportional to 790.59 and 1,717.88

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Solution

The third proportional to 790.59 and 1,717.88 is: 3,732.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    790.59 : 1,717.88 = 1,717.88 : x
  2. Step 2: Convert to fraction form
    790.59/1,717.88 = 1,717.88/x
  3. Step 3: Cross multiply
    790.59x = 1,717.88 × 1,717.88
  4. Step 4: Simplify right side
    790.59x = 2,951,094.52
  5. Step 5: Solve for x
    x = 2,951,094.52/790.59
  6. Step 6: Final answer
    x = 3,732.76

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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.