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Finding the Fourth Proportional to 36,409.86, 54,636.02 and 15,348.61

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Solution

The fourth proportional to 36,409.86, 54,636.02 and 15,348.61 is: 23,031.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,409.86 : 54,636.02 = 15,348.61 : x
  2. Step 2: Convert to fraction form
    36,409.86/54,636.02 = 15,348.61/x
  3. Step 3: Cross multiply
    36,409.86x = 54,636.02 × 15,348.61
  4. Step 4: Simplify right side
    36,409.86x = 838,587,012.04
  5. Step 5: Solve for x
    x = 838,587,012.04/36,409.86
  6. Step 6: Final answer
    x = 23,031.87

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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.