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Finding the Fourth Proportional to 18,591.19, 27,880.87 and 6,108.32

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Solution

The fourth proportional to 18,591.19, 27,880.87 and 6,108.32 is: 9,160.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,591.19 : 27,880.87 = 6,108.32 : x
  2. Step 2: Convert to fraction form
    18,591.19/27,880.87 = 6,108.32/x
  3. Step 3: Cross multiply
    18,591.19x = 27,880.87 × 6,108.32
  4. Step 4: Simplify right side
    18,591.19x = 170,305,275.84
  5. Step 5: Solve for x
    x = 170,305,275.84/18,591.19
  6. Step 6: Final answer
    x = 9,160.54

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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.