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Finding the Fourth Proportional to 8,880.91, 12,259.16 and 5,855.56

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Solution

The fourth proportional to 8,880.91, 12,259.16 and 5,855.56 is: 8,082.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,880.91 : 12,259.16 = 5,855.56 : x
  2. Step 2: Convert to fraction form
    8,880.91/12,259.16 = 5,855.56/x
  3. Step 3: Cross multiply
    8,880.91x = 12,259.16 × 5,855.56
  4. Step 4: Simplify right side
    8,880.91x = 71,784,246.93
  5. Step 5: Solve for x
    x = 71,784,246.93/8,880.91
  6. Step 6: Final answer
    x = 8,082.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.