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Finding the Fourth Proportional to 7,008.97, 10,520.37 and 3,722.05

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Solution

The fourth proportional to 7,008.97, 10,520.37 and 3,722.05 is: 5,586.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,008.97 : 10,520.37 = 3,722.05 : x
  2. Step 2: Convert to fraction form
    7,008.97/10,520.37 = 3,722.05/x
  3. Step 3: Cross multiply
    7,008.97x = 10,520.37 × 3,722.05
  4. Step 4: Simplify right side
    7,008.97x = 39,157,351.07
  5. Step 5: Solve for x
    x = 39,157,351.07/7,008.97
  6. Step 6: Final answer
    x = 5,586.75

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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.