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Finding the Fourth Proportional to 49,668.25, 68,540.74 and 28,159.98

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Solution

The fourth proportional to 49,668.25, 68,540.74 and 28,159.98 is: 38,859.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,668.25 : 68,540.74 = 28,159.98 : x
  2. Step 2: Convert to fraction form
    49,668.25/68,540.74 = 28,159.98/x
  3. Step 3: Cross multiply
    49,668.25x = 68,540.74 × 28,159.98
  4. Step 4: Simplify right side
    49,668.25x = 1,930,105,925.70
  5. Step 5: Solve for x
    x = 1,930,105,925.70/49,668.25
  6. Step 6: Final answer
    x = 38,859.95

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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.