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Finding the Fourth Proportional to 7,344.54, 10,991.43 and 4,532.31

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Solution

The fourth proportional to 7,344.54, 10,991.43 and 4,532.31 is: 6,782.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,344.54 : 10,991.43 = 4,532.31 : x
  2. Step 2: Convert to fraction form
    7,344.54/10,991.43 = 4,532.31/x
  3. Step 3: Cross multiply
    7,344.54x = 10,991.43 × 4,532.31
  4. Step 4: Simplify right side
    7,344.54x = 49,816,568.10
  5. Step 5: Solve for x
    x = 49,816,568.10/7,344.54
  6. Step 6: Final answer
    x = 6,782.80

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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.