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Finding the Fourth Proportional to 12,371.88, 17,072.10 and 7,335.24

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Solution

The fourth proportional to 12,371.88, 17,072.10 and 7,335.24 is: 10,121.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,371.88 : 17,072.10 = 7,335.24 : x
  2. Step 2: Convert to fraction form
    12,371.88/17,072.10 = 7,335.24/x
  3. Step 3: Cross multiply
    12,371.88x = 17,072.10 × 7,335.24
  4. Step 4: Simplify right side
    12,371.88x = 125,227,950.80
  5. Step 5: Solve for x
    x = 125,227,950.80/12,371.88
  6. Step 6: Final answer
    x = 10,121.98

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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.