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Finding the Fourth Proportional to 12,371.77, 17,076.02 and 7,069.68

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Solution

The fourth proportional to 12,371.77, 17,076.02 and 7,069.68 is: 9,757.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,371.77 : 17,076.02 = 7,069.68 : x
  2. Step 2: Convert to fraction form
    12,371.77/17,076.02 = 7,069.68/x
  3. Step 3: Cross multiply
    12,371.77x = 17,076.02 × 7,069.68
  4. Step 4: Simplify right side
    12,371.77x = 120,721,961.73
  5. Step 5: Solve for x
    x = 120,721,961.73/12,371.77
  6. Step 6: Final answer
    x = 9,757.86

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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.