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Finding the Fourth Proportional to 8,406.77, 11,589.05 and 5,881.02

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Solution

The fourth proportional to 8,406.77, 11,589.05 and 5,881.02 is: 8,107.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,406.77 : 11,589.05 = 5,881.02 : x
  2. Step 2: Convert to fraction form
    8,406.77/11,589.05 = 5,881.02/x
  3. Step 3: Cross multiply
    8,406.77x = 11,589.05 × 5,881.02
  4. Step 4: Simplify right side
    8,406.77x = 68,155,405.43
  5. Step 5: Solve for x
    x = 68,155,405.43/8,406.77
  6. Step 6: Final answer
    x = 8,107.21

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Double scale
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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.