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Finding the Third Proportional to 661.92 and 1,525.92

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Solution

The third proportional to 661.92 and 1,525.92 is: 3,517.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    661.92 : 1,525.92 = 1,525.92 : x
  2. Step 2: Convert to fraction form
    661.92/1,525.92 = 1,525.92/x
  3. Step 3: Cross multiply
    661.92x = 1,525.92 × 1,525.92
  4. Step 4: Simplify right side
    661.92x = 2,328,437.57
  5. Step 5: Solve for x
    x = 2,328,437.57/661.92
  6. Step 6: Final answer
    x = 3,517.69

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.