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Finding the Fourth Proportional to 18,155.88, 27,235.59 and 7,063.47

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Solution

The fourth proportional to 18,155.88, 27,235.59 and 7,063.47 is: 10,595.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,155.88 : 27,235.59 = 7,063.47 : x
  2. Step 2: Convert to fraction form
    18,155.88/27,235.59 = 7,063.47/x
  3. Step 3: Cross multiply
    18,155.88x = 27,235.59 × 7,063.47
  4. Step 4: Simplify right side
    18,155.88x = 192,377,772.90
  5. Step 5: Solve for x
    x = 192,377,772.90/18,155.88
  6. Step 6: Final answer
    x = 10,595.89

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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.