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Finding the Fourth Proportional to 18,051.30, 27,048.15 and 15,113.70

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Solution

The fourth proportional to 18,051.30, 27,048.15 and 15,113.70 is: 22,646.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,051.30 : 27,048.15 = 15,113.70 : x
  2. Step 2: Convert to fraction form
    18,051.30/27,048.15 = 15,113.70/x
  3. Step 3: Cross multiply
    18,051.30x = 27,048.15 × 15,113.70
  4. Step 4: Simplify right side
    18,051.30x = 408,797,624.66
  5. Step 5: Solve for x
    x = 408,797,624.66/18,051.30
  6. Step 6: Final answer
    x = 22,646.44

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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.