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Finding the Fourth Proportional to 29,017.38, 40,043.98 and 15,769.38

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Solution

The fourth proportional to 29,017.38, 40,043.98 and 15,769.38 is: 21,761.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,017.38 : 40,043.98 = 15,769.38 : x
  2. Step 2: Convert to fraction form
    29,017.38/40,043.98 = 15,769.38/x
  3. Step 3: Cross multiply
    29,017.38x = 40,043.98 × 15,769.38
  4. Step 4: Simplify right side
    29,017.38x = 631,468,497.69
  5. Step 5: Solve for x
    x = 631,468,497.69/29,017.38
  6. Step 6: Final answer
    x = 21,761.74

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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.