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Finding the Fourth Proportional to 40,470.88, 60,710.37 and 10,891.84

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Solution

The fourth proportional to 40,470.88, 60,710.37 and 10,891.84 is: 16,338.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,470.88 : 60,710.37 = 10,891.84 : x
  2. Step 2: Convert to fraction form
    40,470.88/60,710.37 = 10,891.84/x
  3. Step 3: Cross multiply
    40,470.88x = 60,710.37 × 10,891.84
  4. Step 4: Simplify right side
    40,470.88x = 661,247,636.38
  5. Step 5: Solve for x
    x = 661,247,636.38/40,470.88
  6. Step 6: Final answer
    x = 16,338.85

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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.