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Finding the Fourth Proportional to 40,866.71, 56,375.48 and 35,481.81

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Solution

The fourth proportional to 40,866.71, 56,375.48 and 35,481.81 is: 48,947.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,866.71 : 56,375.48 = 35,481.81 : x
  2. Step 2: Convert to fraction form
    40,866.71/56,375.48 = 35,481.81/x
  3. Step 3: Cross multiply
    40,866.71x = 56,375.48 × 35,481.81
  4. Step 4: Simplify right side
    40,866.71x = 2,000,303,892.61
  5. Step 5: Solve for x
    x = 2,000,303,892.61/40,866.71
  6. Step 6: Final answer
    x = 48,947.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.