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Finding the Fourth Proportional to 83,780.52, 125,760.30 and 33,893.22

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Solution

The fourth proportional to 83,780.52, 125,760.30 and 33,893.22 is: 50,876.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,780.52 : 125,760.30 = 33,893.22 : x
  2. Step 2: Convert to fraction form
    83,780.52/125,760.30 = 33,893.22/x
  3. Step 3: Cross multiply
    83,780.52x = 125,760.30 × 33,893.22
  4. Step 4: Simplify right side
    83,780.52x = 4,262,421,515.17
  5. Step 5: Solve for x
    x = 4,262,421,515.17/83,780.52
  6. Step 6: Final answer
    x = 50,876.05

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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.