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Finding the Fourth Proportional to 69,859.44, 96,406.03 and 38,028.57

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Solution

The fourth proportional to 69,859.44, 96,406.03 and 38,028.57 is: 52,479.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,859.44 : 96,406.03 = 38,028.57 : x
  2. Step 2: Convert to fraction form
    69,859.44/96,406.03 = 38,028.57/x
  3. Step 3: Cross multiply
    69,859.44x = 96,406.03 × 38,028.57
  4. Step 4: Simplify right side
    69,859.44x = 3,666,183,460.28
  5. Step 5: Solve for x
    x = 3,666,183,460.28/69,859.44
  6. Step 6: Final answer
    x = 52,479.43

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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.