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Finding the Fourth Proportional to 30,250.66, 45,385.22 and 15,469.96

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Solution

The fourth proportional to 30,250.66, 45,385.22 and 15,469.96 is: 23,209.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,250.66 : 45,385.22 = 15,469.96 : x
  2. Step 2: Convert to fraction form
    30,250.66/45,385.22 = 15,469.96/x
  3. Step 3: Cross multiply
    30,250.66x = 45,385.22 × 15,469.96
  4. Step 4: Simplify right side
    30,250.66x = 702,107,233.72
  5. Step 5: Solve for x
    x = 702,107,233.72/30,250.66
  6. Step 6: Final answer
    x = 23,209.65

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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.