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Finding the Third Proportional to 1,924 and 4,720

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Solution

The third proportional to 1,924 and 4,720 is: 11,579.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,924 : 4,720 = 4,720 : x
  2. Step 2: Convert to fraction form
    1,924/4,720 = 4,720/x
  3. Step 3: Cross multiply
    1,924x = 4,720 × 4,720
  4. Step 4: Simplify right side
    1,924x = 22,278,400
  5. Step 5: Solve for x
    x = 22,278,400/1,924
  6. Step 6: Final answer
    x = 11,579.21

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Why These Related Problems?

These problems maintain the same ratio (2.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.