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Finding the Fourth Proportional to 36,843.30, 55,212.63 and 28,377.80

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Solution

The fourth proportional to 36,843.30, 55,212.63 and 28,377.80 is: 42,526.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,843.30 : 55,212.63 = 28,377.80 : x
  2. Step 2: Convert to fraction form
    36,843.30/55,212.63 = 28,377.80/x
  3. Step 3: Cross multiply
    36,843.30x = 55,212.63 × 28,377.80
  4. Step 4: Simplify right side
    36,843.30x = 1,566,812,695.55
  5. Step 5: Solve for x
    x = 1,566,812,695.55/36,843.30
  6. Step 6: Final answer
    x = 42,526.39

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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.