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Finding the Fourth Proportional to 41,426.40, 62,042.40 and 28,207.20

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Solution

The fourth proportional to 41,426.40, 62,042.40 and 28,207.20 is: 42,244.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,426.40 : 62,042.40 = 28,207.20 : x
  2. Step 2: Convert to fraction form
    41,426.40/62,042.40 = 28,207.20/x
  3. Step 3: Cross multiply
    41,426.40x = 62,042.40 × 28,207.20
  4. Step 4: Simplify right side
    41,426.40x = 1,750,042,385.28
  5. Step 5: Solve for x
    x = 1,750,042,385.28/41,426.40
  6. Step 6: Final answer
    x = 42,244.62

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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.