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Finding the Fourth Proportional to 83,763.52, 125,668.76 and 33,878.68

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Solution

The fourth proportional to 83,763.52, 125,668.76 and 33,878.68 is: 50,827.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,763.52 : 125,668.76 = 33,878.68 : x
  2. Step 2: Convert to fraction form
    83,763.52/125,668.76 = 33,878.68/x
  3. Step 3: Cross multiply
    83,763.52x = 125,668.76 × 33,878.68
  4. Step 4: Simplify right side
    83,763.52x = 4,257,491,706.04
  5. Step 5: Solve for x
    x = 4,257,491,706.04/83,763.52
  6. Step 6: Final answer
    x = 50,827.52

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1.5x scale

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.