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Finding the Fourth Proportional to 18,045.44, 27,054.08 and 8,184.32

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Solution

The fourth proportional to 18,045.44, 27,054.08 and 8,184.32 is: 12,270.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,045.44 : 27,054.08 = 8,184.32 : x
  2. Step 2: Convert to fraction form
    18,045.44/27,054.08 = 8,184.32/x
  3. Step 3: Cross multiply
    18,045.44x = 27,054.08 × 8,184.32
  4. Step 4: Simplify right side
    18,045.44x = 221,419,248.03
  5. Step 5: Solve for x
    x = 221,419,248.03/18,045.44
  6. Step 6: Final answer
    x = 12,270.09

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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.