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Finding the Third Proportional to 1,324 and 2,480

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Solution

The third proportional to 1,324 and 2,480 is: 4,645.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324 : 2,480 = 2,480 : x
  2. Step 2: Convert to fraction form
    1,324/2,480 = 2,480/x
  3. Step 3: Cross multiply
    1,324x = 2,480 × 2,480
  4. Step 4: Simplify right side
    1,324x = 6,150,400
  5. Step 5: Solve for x
    x = 6,150,400/1,324
  6. Step 6: Final answer
    x = 4,645.32

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Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.