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Finding the Third Proportional to 7,769 and 12,527

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Solution

The third proportional to 7,769 and 12,527 is: 20,198.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,769 : 12,527 = 12,527 : x
  2. Step 2: Convert to fraction form
    7,769/12,527 = 12,527/x
  3. Step 3: Cross multiply
    7,769x = 12,527 × 12,527
  4. Step 4: Simplify right side
    7,769x = 156,925,729
  5. Step 5: Solve for x
    x = 156,925,729/7,769
  6. Step 6: Final answer
    x = 20,198.96

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.