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Finding the Fourth Proportional to 18,601.68, 27,899.64 and 5,452.68

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Solution

The fourth proportional to 18,601.68, 27,899.64 and 5,452.68 is: 8,178.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,601.68 : 27,899.64 = 5,452.68 : x
  2. Step 2: Convert to fraction form
    18,601.68/27,899.64 = 5,452.68/x
  3. Step 3: Cross multiply
    18,601.68x = 27,899.64 × 5,452.68
  4. Step 4: Simplify right side
    18,601.68x = 152,127,809.04
  5. Step 5: Solve for x
    x = 152,127,809.04/18,601.68
  6. Step 6: Final answer
    x = 8,178.18

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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.