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Finding the Third Proportional to 1,352 and 3,124

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Solution

The third proportional to 1,352 and 3,124 is: 7,218.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352 : 3,124 = 3,124 : x
  2. Step 2: Convert to fraction form
    1,352/3,124 = 3,124/x
  3. Step 3: Cross multiply
    1,352x = 3,124 × 3,124
  4. Step 4: Simplify right side
    1,352x = 9,759,376
  5. Step 5: Solve for x
    x = 9,759,376/1,352
  6. Step 6: Final answer
    x = 7,218.47

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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.