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Finding the Third Proportional to 932 and 2,420

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Solution

The third proportional to 932 and 2,420 is: 6,283.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    932 : 2,420 = 2,420 : x
  2. Step 2: Convert to fraction form
    932/2,420 = 2,420/x
  3. Step 3: Cross multiply
    932x = 2,420 × 2,420
  4. Step 4: Simplify right side
    932x = 5,856,400
  5. Step 5: Solve for x
    x = 5,856,400/932
  6. Step 6: Final answer
    x = 6,283.69

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Why These Related Problems?

These problems maintain the same ratio (2.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.