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Finding the Fourth Proportional to 29,043.38, 40,102.44 and 22,318.40

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Solution

The fourth proportional to 29,043.38, 40,102.44 and 22,318.40 is: 30,816.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,043.38 : 40,102.44 = 22,318.40 : x
  2. Step 2: Convert to fraction form
    29,043.38/40,102.44 = 22,318.40/x
  3. Step 3: Cross multiply
    29,043.38x = 40,102.44 × 22,318.40
  4. Step 4: Simplify right side
    29,043.38x = 895,022,296.90
  5. Step 5: Solve for x
    x = 895,022,296.90/29,043.38
  6. Step 6: Final answer
    x = 30,816.74

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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.