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Finding the Fourth Proportional to 28,993.39, 40,014.20 and 16,250.02

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Solution

The fourth proportional to 28,993.39, 40,014.20 and 16,250.02 is: 22,426.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,993.39 : 40,014.20 = 16,250.02 : x
  2. Step 2: Convert to fraction form
    28,993.39/40,014.20 = 16,250.02/x
  3. Step 3: Cross multiply
    28,993.39x = 40,014.20 × 16,250.02
  4. Step 4: Simplify right side
    28,993.39x = 650,231,490.87
  5. Step 5: Solve for x
    x = 650,231,490.87/28,993.39
  6. Step 6: Final answer
    x = 22,426.88

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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.