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Finding the Fourth Proportional to 8,616.52, 11,893.08 and 5,082.10

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Solution

The fourth proportional to 8,616.52, 11,893.08 and 5,082.10 is: 7,014.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,616.52 : 11,893.08 = 5,082.10 : x
  2. Step 2: Convert to fraction form
    8,616.52/11,893.08 = 5,082.10/x
  3. Step 3: Cross multiply
    8,616.52x = 11,893.08 × 5,082.10
  4. Step 4: Simplify right side
    8,616.52x = 60,441,821.87
  5. Step 5: Solve for x
    x = 60,441,821.87/8,616.52
  6. Step 6: Final answer
    x = 7,014.64

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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.