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Finding the Fourth Proportional to 8,616.92, 11,892.46 and 5,259.02

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Solution

The fourth proportional to 8,616.92, 11,892.46 and 5,259.02 is: 7,258.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,616.92 : 11,892.46 = 5,259.02 : x
  2. Step 2: Convert to fraction form
    8,616.92/11,892.46 = 5,259.02/x
  3. Step 3: Cross multiply
    8,616.92x = 11,892.46 × 5,259.02
  4. Step 4: Simplify right side
    8,616.92x = 62,542,684.99
  5. Step 5: Solve for x
    x = 62,542,684.99/8,616.92
  6. Step 6: Final answer
    x = 7,258.13

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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.