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Finding the Fourth Proportional to 18,410.85, 27,612.12 and 5,928.48

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Solution

The fourth proportional to 18,410.85, 27,612.12 and 5,928.48 is: 8,891.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,410.85 : 27,612.12 = 5,928.48 : x
  2. Step 2: Convert to fraction form
    18,410.85/27,612.12 = 5,928.48/x
  3. Step 3: Cross multiply
    18,410.85x = 27,612.12 × 5,928.48
  4. Step 4: Simplify right side
    18,410.85x = 163,697,901.18
  5. Step 5: Solve for x
    x = 163,697,901.18/18,410.85
  6. Step 6: Final answer
    x = 8,891.38

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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.