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Finding the Third Proportional to 64,506.50 and 99,676

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Solution

The third proportional to 64,506.50 and 99,676 is: 154,020.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,506.50 : 99,676 = 99,676 : x
  2. Step 2: Convert to fraction form
    64,506.50/99,676 = 99,676/x
  3. Step 3: Cross multiply
    64,506.50x = 99,676 × 99,676
  4. Step 4: Simplify right side
    64,506.50x = 9,935,304,976
  5. Step 5: Solve for x
    x = 9,935,304,976/64,506.50
  6. Step 6: Final answer
    x = 154,020.21

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.