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Finding the Fourth Proportional to 60,672.82, 91,050.24 and 21,230.28

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Solution

The fourth proportional to 60,672.82, 91,050.24 and 21,230.28 is: 31,859.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,672.82 : 91,050.24 = 21,230.28 : x
  2. Step 2: Convert to fraction form
    60,672.82/91,050.24 = 21,230.28/x
  3. Step 3: Cross multiply
    60,672.82x = 91,050.24 × 21,230.28
  4. Step 4: Simplify right side
    60,672.82x = 1,933,021,823.24
  5. Step 5: Solve for x
    x = 1,933,021,823.24/60,672.82
  6. Step 6: Final answer
    x = 31,859.76

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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.