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Finding the Fourth Proportional to 12,517.11, 17,273.79 and 6,928.11

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Solution

The fourth proportional to 12,517.11, 17,273.79 and 6,928.11 is: 9,560.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,517.11 : 17,273.79 = 6,928.11 : x
  2. Step 2: Convert to fraction form
    12,517.11/17,273.79 = 6,928.11/x
  3. Step 3: Cross multiply
    12,517.11x = 17,273.79 × 6,928.11
  4. Step 4: Simplify right side
    12,517.11x = 119,674,717.24
  5. Step 5: Solve for x
    x = 119,674,717.24/12,517.11
  6. Step 6: Final answer
    x = 9,560.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.