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Finding the Third Proportional to 2,320 and 4,292

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Solution

The third proportional to 2,320 and 4,292 is: 7,940.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,320 : 4,292 = 4,292 : x
  2. Step 2: Convert to fraction form
    2,320/4,292 = 4,292/x
  3. Step 3: Cross multiply
    2,320x = 4,292 × 4,292
  4. Step 4: Simplify right side
    2,320x = 18,421,264
  5. Step 5: Solve for x
    x = 18,421,264/2,320
  6. Step 6: Final answer
    x = 7,940.20

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Why These Related Problems?

These problems maintain the same ratio (1.85) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.