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Finding the Fourth Proportional to 41,806.60, 62,612.70 and 28,587.40

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Solution

The fourth proportional to 41,806.60, 62,612.70 and 28,587.40 is: 42,814.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,806.60 : 62,612.70 = 28,587.40 : x
  2. Step 2: Convert to fraction form
    41,806.60/62,612.70 = 28,587.40/x
  3. Step 3: Cross multiply
    41,806.60x = 62,612.70 × 28,587.40
  4. Step 4: Simplify right side
    41,806.60x = 1,789,934,299.98
  5. Step 5: Solve for x
    x = 1,789,934,299.98/41,806.60
  6. Step 6: Final answer
    x = 42,814.63

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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.