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Finding the Third Proportional to 7,966.50 and 11,709

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Solution

The third proportional to 7,966.50 and 11,709 is: 17,209.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,966.50 : 11,709 = 11,709 : x
  2. Step 2: Convert to fraction form
    7,966.50/11,709 = 11,709/x
  3. Step 3: Cross multiply
    7,966.50x = 11,709 × 11,709
  4. Step 4: Simplify right side
    7,966.50x = 137,100,681
  5. Step 5: Solve for x
    x = 137,100,681/7,966.50
  6. Step 6: Final answer
    x = 17,209.65

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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.