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Finding the Fourth Proportional to 12,682.38, 17,500.16 and 7,016.38

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Solution

The fourth proportional to 12,682.38, 17,500.16 and 7,016.38 is: 9,681.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,682.38 : 17,500.16 = 7,016.38 : x
  2. Step 2: Convert to fraction form
    12,682.38/17,500.16 = 7,016.38/x
  3. Step 3: Cross multiply
    12,682.38x = 17,500.16 × 7,016.38
  4. Step 4: Simplify right side
    12,682.38x = 122,787,772.62
  5. Step 5: Solve for x
    x = 122,787,772.62/12,682.38
  6. Step 6: Final answer
    x = 9,681.76

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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.