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Finding the Fourth Proportional to 12,371.73, 17,073.95 and 7,068.21

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Solution

The fourth proportional to 12,371.73, 17,073.95 and 7,068.21 is: 9,754.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,371.73 : 17,073.95 = 7,068.21 : x
  2. Step 2: Convert to fraction form
    12,371.73/17,073.95 = 7,068.21/x
  3. Step 3: Cross multiply
    12,371.73x = 17,073.95 × 7,068.21
  4. Step 4: Simplify right side
    12,371.73x = 120,682,228.79
  5. Step 5: Solve for x
    x = 120,682,228.79/12,371.73
  6. Step 6: Final answer
    x = 9,754.68

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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.