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Finding the Fourth Proportional to 29,381.87, 44,072.78 and 10,661.87

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Solution

The fourth proportional to 29,381.87, 44,072.78 and 10,661.87 is: 15,992.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,381.87 : 44,072.78 = 10,661.87 : x
  2. Step 2: Convert to fraction form
    29,381.87/44,072.78 = 10,661.87/x
  3. Step 3: Cross multiply
    29,381.87x = 44,072.78 × 10,661.87
  4. Step 4: Simplify right side
    29,381.87x = 469,897,977.23
  5. Step 5: Solve for x
    x = 469,897,977.23/29,381.87
  6. Step 6: Final answer
    x = 15,992.79

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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.