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Finding the Fourth Proportional to 18,474.64, 27,712.08 and 7,382.26

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Solution

The fourth proportional to 18,474.64, 27,712.08 and 7,382.26 is: 11,073.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,474.64 : 27,712.08 = 7,382.26 : x
  2. Step 2: Convert to fraction form
    18,474.64/27,712.08 = 7,382.26/x
  3. Step 3: Cross multiply
    18,474.64x = 27,712.08 × 7,382.26
  4. Step 4: Simplify right side
    18,474.64x = 204,577,779.70
  5. Step 5: Solve for x
    x = 204,577,779.70/18,474.64
  6. Step 6: Final answer
    x = 11,073.44

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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.