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Finding the Fourth Proportional to 18,247.72, 27,371.58 and 4,396.72

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Solution

The fourth proportional to 18,247.72, 27,371.58 and 4,396.72 is: 6,595.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,247.72 : 27,371.58 = 4,396.72 : x
  2. Step 2: Convert to fraction form
    18,247.72/27,371.58 = 4,396.72/x
  3. Step 3: Cross multiply
    18,247.72x = 27,371.58 × 4,396.72
  4. Step 4: Simplify right side
    18,247.72x = 120,345,173.22
  5. Step 5: Solve for x
    x = 120,345,173.22/18,247.72
  6. Step 6: Final answer
    x = 6,595.08

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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.