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Finding the Third Proportional to 959.50 and 1,439

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Solution

The third proportional to 959.50 and 1,439 is: 2,158.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    959.50 : 1,439 = 1,439 : x
  2. Step 2: Convert to fraction form
    959.50/1,439 = 1,439/x
  3. Step 3: Cross multiply
    959.50x = 1,439 × 1,439
  4. Step 4: Simplify right side
    959.50x = 2,070,721
  5. Step 5: Solve for x
    x = 2,070,721/959.50
  6. Step 6: Final answer
    x = 2,158.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.