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Finding the Third Proportional to 1,642 and 2,924

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Solution

The third proportional to 1,642 and 2,924 is: 5,206.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642 : 2,924 = 2,924 : x
  2. Step 2: Convert to fraction form
    1,642/2,924 = 2,924/x
  3. Step 3: Cross multiply
    1,642x = 2,924 × 2,924
  4. Step 4: Simplify right side
    1,642x = 8,549,776
  5. Step 5: Solve for x
    x = 8,549,776/1,642
  6. Step 6: Final answer
    x = 5,206.93

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.