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Finding the Third Proportional to 1,147 and 1,360

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Solution

The third proportional to 1,147 and 1,360 is: 1,612.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147 : 1,360 = 1,360 : x
  2. Step 2: Convert to fraction form
    1,147/1,360 = 1,360/x
  3. Step 3: Cross multiply
    1,147x = 1,360 × 1,360
  4. Step 4: Simplify right side
    1,147x = 1,849,600
  5. Step 5: Solve for x
    x = 1,849,600/1,147
  6. Step 6: Final answer
    x = 1,612.55

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Why These Related Problems?

These problems maintain the same ratio (1.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.