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Finding the Fourth Proportional to 40,336.20, 60,489.90 and 14,041.80

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Solution

The fourth proportional to 40,336.20, 60,489.90 and 14,041.80 is: 21,057.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,336.20 : 60,489.90 = 14,041.80 : x
  2. Step 2: Convert to fraction form
    40,336.20/60,489.90 = 14,041.80/x
  3. Step 3: Cross multiply
    40,336.20x = 60,489.90 × 14,041.80
  4. Step 4: Simplify right side
    40,336.20x = 849,387,077.82
  5. Step 5: Solve for x
    x = 849,387,077.82/40,336.20
  6. Step 6: Final answer
    x = 21,057.69

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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.