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Finding the Fourth Proportional to 30,197.28, 41,677.02 and 28,868.52

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Solution

The fourth proportional to 30,197.28, 41,677.02 and 28,868.52 is: 39,843.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,197.28 : 41,677.02 = 28,868.52 : x
  2. Step 2: Convert to fraction form
    30,197.28/41,677.02 = 28,868.52/x
  3. Step 3: Cross multiply
    30,197.28x = 41,677.02 × 28,868.52
  4. Step 4: Simplify right side
    30,197.28x = 1,203,153,885.41
  5. Step 5: Solve for x
    x = 1,203,153,885.41/30,197.28
  6. Step 6: Final answer
    x = 39,843.12

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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.