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Finding the Fourth Proportional to 23,382.90, 35,074.11 and 13,515.90

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Solution

The fourth proportional to 23,382.90, 35,074.11 and 13,515.90 is: 20,273.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,382.90 : 35,074.11 = 13,515.90 : x
  2. Step 2: Convert to fraction form
    23,382.90/35,074.11 = 13,515.90/x
  3. Step 3: Cross multiply
    23,382.90x = 35,074.11 × 13,515.90
  4. Step 4: Simplify right side
    23,382.90x = 474,058,163.35
  5. Step 5: Solve for x
    x = 474,058,163.35/23,382.90
  6. Step 6: Final answer
    x = 20,273.71

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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.