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Finding the Third Proportional to 1,006.88 and 1,515.38

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Solution

The third proportional to 1,006.88 and 1,515.38 is: 2,280.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006.88 : 1,515.38 = 1,515.38 : x
  2. Step 2: Convert to fraction form
    1,006.88/1,515.38 = 1,515.38/x
  3. Step 3: Cross multiply
    1,006.88x = 1,515.38 × 1,515.38
  4. Step 4: Simplify right side
    1,006.88x = 2,296,361.39
  5. Step 5: Solve for x
    x = 2,296,361.39/1,006.88
  6. Step 6: Final answer
    x = 2,280.68

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.