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Finding the Fourth Proportional to 18,349.52, 27,515.88 and 5,867.12

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Solution

The fourth proportional to 18,349.52, 27,515.88 and 5,867.12 is: 8,797.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,349.52 : 27,515.88 = 5,867.12 : x
  2. Step 2: Convert to fraction form
    18,349.52/27,515.88 = 5,867.12/x
  3. Step 3: Cross multiply
    18,349.52x = 27,515.88 × 5,867.12
  4. Step 4: Simplify right side
    18,349.52x = 161,438,969.87
  5. Step 5: Solve for x
    x = 161,438,969.87/18,349.52
  6. Step 6: Final answer
    x = 8,797.99

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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.