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Finding the Fourth Proportional to 5,591.64, 8,387.72 and 3,955.50

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Solution

The fourth proportional to 5,591.64, 8,387.72 and 3,955.50 is: 5,933.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,591.64 : 8,387.72 = 3,955.50 : x
  2. Step 2: Convert to fraction form
    5,591.64/8,387.72 = 3,955.50/x
  3. Step 3: Cross multiply
    5,591.64x = 8,387.72 × 3,955.50
  4. Step 4: Simplify right side
    5,591.64x = 33,177,606.68
  5. Step 5: Solve for x
    x = 33,177,606.68/5,591.64
  6. Step 6: Final answer
    x = 5,933.43

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.