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Finding the Fourth Proportional to 67,641.44, 101,474.92 and 20,883.40

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Solution

The fourth proportional to 67,641.44, 101,474.92 and 20,883.40 is: 31,329.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,641.44 : 101,474.92 = 20,883.40 : x
  2. Step 2: Convert to fraction form
    67,641.44/101,474.92 = 20,883.40/x
  3. Step 3: Cross multiply
    67,641.44x = 101,474.92 × 20,883.40
  4. Step 4: Simplify right side
    67,641.44x = 2,119,141,344.33
  5. Step 5: Solve for x
    x = 2,119,141,344.33/67,641.44
  6. Step 6: Final answer
    x = 31,329.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.