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Finding the Fourth Proportional to 18,506.88, 27,760.14 and 5,359.14

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Solution

The fourth proportional to 18,506.88, 27,760.14 and 5,359.14 is: 8,038.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,506.88 : 27,760.14 = 5,359.14 : x
  2. Step 2: Convert to fraction form
    18,506.88/27,760.14 = 5,359.14/x
  3. Step 3: Cross multiply
    18,506.88x = 27,760.14 × 5,359.14
  4. Step 4: Simplify right side
    18,506.88x = 148,770,476.68
  5. Step 5: Solve for x
    x = 148,770,476.68/18,506.88
  6. Step 6: Final answer
    x = 8,038.66

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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.