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Finding the Fourth Proportional to 18,042.55, 27,063.84 and 4,894.92

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Solution

The fourth proportional to 18,042.55, 27,063.84 and 4,894.92 is: 7,342.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,042.55 : 27,063.84 = 4,894.92 : x
  2. Step 2: Convert to fraction form
    18,042.55/27,063.84 = 4,894.92/x
  3. Step 3: Cross multiply
    18,042.55x = 27,063.84 × 4,894.92
  4. Step 4: Simplify right side
    18,042.55x = 132,475,380.41
  5. Step 5: Solve for x
    x = 132,475,380.41/18,042.55
  6. Step 6: Final answer
    x = 7,342.39

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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.