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Finding the Fourth Proportional to 18,464.76, 27,690.30 and 7,368.12

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Solution

The fourth proportional to 18,464.76, 27,690.30 and 7,368.12 is: 11,049.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,464.76 : 27,690.30 = 7,368.12 : x
  2. Step 2: Convert to fraction form
    18,464.76/27,690.30 = 7,368.12/x
  3. Step 3: Cross multiply
    18,464.76x = 27,690.30 × 7,368.12
  4. Step 4: Simplify right side
    18,464.76x = 204,025,453.24
  5. Step 5: Solve for x
    x = 204,025,453.24/18,464.76
  6. Step 6: Final answer
    x = 11,049.45

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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.