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Finding the Fourth Proportional to 9,371.73, 12,932.98 and 5,179.98

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Solution

The fourth proportional to 9,371.73, 12,932.98 and 5,179.98 is: 7,148.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,371.73 : 12,932.98 = 5,179.98 : x
  2. Step 2: Convert to fraction form
    9,371.73/12,932.98 = 5,179.98/x
  3. Step 3: Cross multiply
    9,371.73x = 12,932.98 × 5,179.98
  4. Step 4: Simplify right side
    9,371.73x = 66,992,551.84
  5. Step 5: Solve for x
    x = 66,992,551.84/9,371.73
  6. Step 6: Final answer
    x = 7,148.37

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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.