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Finding the Fourth Proportional to 18,045.40, 27,066.06 and 8,555.44

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Solution

The fourth proportional to 18,045.40, 27,066.06 and 8,555.44 is: 12,832.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,045.40 : 27,066.06 = 8,555.44 : x
  2. Step 2: Convert to fraction form
    18,045.40/27,066.06 = 8,555.44/x
  3. Step 3: Cross multiply
    18,045.40x = 27,066.06 × 8,555.44
  4. Step 4: Simplify right side
    18,045.40x = 231,562,052.37
  5. Step 5: Solve for x
    x = 231,562,052.37/18,045.40
  6. Step 6: Final answer
    x = 12,832.19

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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.