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Finding the Third Proportional to 4,641.50 and 9,769

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Solution

The third proportional to 4,641.50 and 9,769 is: 20,560.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,641.50 : 9,769 = 9,769 : x
  2. Step 2: Convert to fraction form
    4,641.50/9,769 = 9,769/x
  3. Step 3: Cross multiply
    4,641.50x = 9,769 × 9,769
  4. Step 4: Simplify right side
    4,641.50x = 95,433,361
  5. Step 5: Solve for x
    x = 95,433,361/4,641.50
  6. Step 6: Final answer
    x = 20,560.89

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.