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Finding the Fourth Proportional to 36,561.90, 54,799.65 and 15,501.90

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Solution

The fourth proportional to 36,561.90, 54,799.65 and 15,501.90 is: 23,234.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,561.90 : 54,799.65 = 15,501.90 : x
  2. Step 2: Convert to fraction form
    36,561.90/54,799.65 = 15,501.90/x
  3. Step 3: Cross multiply
    36,561.90x = 54,799.65 × 15,501.90
  4. Step 4: Simplify right side
    36,561.90x = 849,498,694.34
  5. Step 5: Solve for x
    x = 849,498,694.34/36,561.90
  6. Step 6: Final answer
    x = 23,234.53

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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.