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Finding the Fourth Proportional to 7,375.79, 11,056.99 and 3,679.15

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Solution

The fourth proportional to 7,375.79, 11,056.99 and 3,679.15 is: 5,515.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,375.79 : 11,056.99 = 3,679.15 : x
  2. Step 2: Convert to fraction form
    7,375.79/11,056.99 = 3,679.15/x
  3. Step 3: Cross multiply
    7,375.79x = 11,056.99 × 3,679.15
  4. Step 4: Simplify right side
    7,375.79x = 40,680,315.55
  5. Step 5: Solve for x
    x = 40,680,315.55/7,375.79
  6. Step 6: Final answer
    x = 5,515.39

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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.