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Finding the Fourth Proportional to 40,055.16, 60,086.16 and 10,472.96

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Solution

The fourth proportional to 40,055.16, 60,086.16 and 10,472.96 is: 15,710.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,055.16 : 60,086.16 = 10,472.96 : x
  2. Step 2: Convert to fraction form
    40,055.16/60,086.16 = 10,472.96/x
  3. Step 3: Cross multiply
    40,055.16x = 60,086.16 × 10,472.96
  4. Step 4: Simplify right side
    40,055.16x = 629,279,649.80
  5. Step 5: Solve for x
    x = 629,279,649.80/40,055.16
  6. Step 6: Final answer
    x = 15,710.33

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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.