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Finding the Fourth Proportional to 7,272.87, 10,912.04 and 4,353.23

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Solution

The fourth proportional to 7,272.87, 10,912.04 and 4,353.23 is: 6,531.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272.87 : 10,912.04 = 4,353.23 : x
  2. Step 2: Convert to fraction form
    7,272.87/10,912.04 = 4,353.23/x
  3. Step 3: Cross multiply
    7,272.87x = 10,912.04 × 4,353.23
  4. Step 4: Simplify right side
    7,272.87x = 47,502,543.56
  5. Step 5: Solve for x
    x = 47,502,543.56/7,272.87
  6. Step 6: Final answer
    x = 6,531.47

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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.