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Finding the Third Proportional to 19,694 and 28,965

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Solution

The third proportional to 19,694 and 28,965 is: 42,600.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,694 : 28,965 = 28,965 : x
  2. Step 2: Convert to fraction form
    19,694/28,965 = 28,965/x
  3. Step 3: Cross multiply
    19,694x = 28,965 × 28,965
  4. Step 4: Simplify right side
    19,694x = 838,971,225
  5. Step 5: Solve for x
    x = 838,971,225/19,694
  6. Step 6: Final answer
    x = 42,600.35

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.