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Finding the Fourth Proportional to 49,604, 68,434.02 and 28,371.92

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Solution

The fourth proportional to 49,604, 68,434.02 and 28,371.92 is: 39,142.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,604 : 68,434.02 = 28,371.92 : x
  2. Step 2: Convert to fraction form
    49,604/68,434.02 = 28,371.92/x
  3. Step 3: Cross multiply
    49,604x = 68,434.02 × 28,371.92
  4. Step 4: Simplify right side
    49,604x = 1,941,604,540.72
  5. Step 5: Solve for x
    x = 1,941,604,540.72/49,604
  6. Step 6: Final answer
    x = 39,142.10

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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.