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Finding the Third Proportional to 2,989.41 and 4,654.97

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Solution

The third proportional to 2,989.41 and 4,654.97 is: 7,248.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.41 : 4,654.97 = 4,654.97 : x
  2. Step 2: Convert to fraction form
    2,989.41/4,654.97 = 4,654.97/x
  3. Step 3: Cross multiply
    2,989.41x = 4,654.97 × 4,654.97
  4. Step 4: Simplify right side
    2,989.41x = 21,668,734.06
  5. Step 5: Solve for x
    x = 21,668,734.06/2,989.41
  6. Step 6: Final answer
    x = 7,248.51

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.