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Finding the Third Proportional to 959.50 and 1,520

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Solution

The third proportional to 959.50 and 1,520 is: 2,407.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    959.50 : 1,520 = 1,520 : x
  2. Step 2: Convert to fraction form
    959.50/1,520 = 1,520/x
  3. Step 3: Cross multiply
    959.50x = 1,520 × 1,520
  4. Step 4: Simplify right side
    959.50x = 2,310,400
  5. Step 5: Solve for x
    x = 2,310,400/959.50
  6. Step 6: Final answer
    x = 2,407.92

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.