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Finding the Fourth Proportional to 13,008.82, 17,952.12 and 7,040.44

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Solution

The fourth proportional to 13,008.82, 17,952.12 and 7,040.44 is: 9,715.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,008.82 : 17,952.12 = 7,040.44 : x
  2. Step 2: Convert to fraction form
    13,008.82/17,952.12 = 7,040.44/x
  3. Step 3: Cross multiply
    13,008.82x = 17,952.12 × 7,040.44
  4. Step 4: Simplify right side
    13,008.82x = 126,390,823.73
  5. Step 5: Solve for x
    x = 126,390,823.73/13,008.82
  6. Step 6: Final answer
    x = 9,715.78

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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.