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Finding the Fourth Proportional to 12,836.61, 17,713.67 and 7,247.25

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Solution

The fourth proportional to 12,836.61, 17,713.67 and 7,247.25 is: 10,000.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,836.61 : 17,713.67 = 7,247.25 : x
  2. Step 2: Convert to fraction form
    12,836.61/17,713.67 = 7,247.25/x
  3. Step 3: Cross multiply
    12,836.61x = 17,713.67 × 7,247.25
  4. Step 4: Simplify right side
    12,836.61x = 128,375,358.67
  5. Step 5: Solve for x
    x = 128,375,358.67/12,836.61
  6. Step 6: Final answer
    x = 10,000.72

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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.