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Finding the Fourth Proportional to 18,412.19, 27,616.81 and 5,928.97

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Solution

The fourth proportional to 18,412.19, 27,616.81 and 5,928.97 is: 8,892.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,412.19 : 27,616.81 = 5,928.97 : x
  2. Step 2: Convert to fraction form
    18,412.19/27,616.81 = 5,928.97/x
  3. Step 3: Cross multiply
    18,412.19x = 27,616.81 × 5,928.97
  4. Step 4: Simplify right side
    18,412.19x = 163,739,237.99
  5. Step 5: Solve for x
    x = 163,739,237.99/18,412.19
  6. Step 6: Final answer
    x = 8,892.98

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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.