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Finding the Fourth Proportional to 29,211.20, 43,816.48 and 7,323.20

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Solution

The fourth proportional to 29,211.20, 43,816.48 and 7,323.20 is: 10,984.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,211.20 : 43,816.48 = 7,323.20 : x
  2. Step 2: Convert to fraction form
    29,211.20/43,816.48 = 7,323.20/x
  3. Step 3: Cross multiply
    29,211.20x = 43,816.48 × 7,323.20
  4. Step 4: Simplify right side
    29,211.20x = 320,876,846.34
  5. Step 5: Solve for x
    x = 320,876,846.34/29,211.20
  6. Step 6: Final answer
    x = 10,984.72

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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.