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Finding the Fourth Proportional to 8,591.28, 11,844.91 and 5,561.03

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Solution

The fourth proportional to 8,591.28, 11,844.91 and 5,561.03 is: 7,667.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,591.28 : 11,844.91 = 5,561.03 : x
  2. Step 2: Convert to fraction form
    8,591.28/11,844.91 = 5,561.03/x
  3. Step 3: Cross multiply
    8,591.28x = 11,844.91 × 5,561.03
  4. Step 4: Simplify right side
    8,591.28x = 65,869,887.47
  5. Step 5: Solve for x
    x = 65,869,887.47/8,591.28
  6. Step 6: Final answer
    x = 7,667.07

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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.