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Finding the Fourth Proportional to 5,591.75, 7,715.99 and 3,353.72

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Solution

The fourth proportional to 5,591.75, 7,715.99 and 3,353.72 is: 4,627.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,591.75 : 7,715.99 = 3,353.72 : x
  2. Step 2: Convert to fraction form
    5,591.75/7,715.99 = 3,353.72/x
  3. Step 3: Cross multiply
    5,591.75x = 7,715.99 × 3,353.72
  4. Step 4: Simplify right side
    5,591.75x = 25,877,214.63
  5. Step 5: Solve for x
    x = 25,877,214.63/5,591.75
  6. Step 6: Final answer
    x = 4,627.75

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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.