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Finding the Fourth Proportional to 38,893.88, 58,340.82 and 11,191.88

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Solution

The fourth proportional to 38,893.88, 58,340.82 and 11,191.88 is: 16,787.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,893.88 : 58,340.82 = 11,191.88 : x
  2. Step 2: Convert to fraction form
    38,893.88/58,340.82 = 11,191.88/x
  3. Step 3: Cross multiply
    38,893.88x = 58,340.82 × 11,191.88
  4. Step 4: Simplify right side
    38,893.88x = 652,943,456.54
  5. Step 5: Solve for x
    x = 652,943,456.54/38,893.88
  6. Step 6: Final answer
    x = 16,787.82

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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.