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Finding the Fourth Proportional to 9,371.67, 12,932.83 and 5,122.74

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Solution

The fourth proportional to 9,371.67, 12,932.83 and 5,122.74 is: 7,069.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,371.67 : 12,932.83 = 5,122.74 : x
  2. Step 2: Convert to fraction form
    9,371.67/12,932.83 = 5,122.74/x
  3. Step 3: Cross multiply
    9,371.67x = 12,932.83 × 5,122.74
  4. Step 4: Simplify right side
    9,371.67x = 66,251,525.55
  5. Step 5: Solve for x
    x = 66,251,525.55/9,371.67
  6. Step 6: Final answer
    x = 7,069.34

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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.