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Finding the Fourth Proportional to 7,381.52, 11,074.10 and 3,685.52

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Solution

The fourth proportional to 7,381.52, 11,074.10 and 3,685.52 is: 5,529.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,381.52 : 11,074.10 = 3,685.52 : x
  2. Step 2: Convert to fraction form
    7,381.52/11,074.10 = 3,685.52/x
  3. Step 3: Cross multiply
    7,381.52x = 11,074.10 × 3,685.52
  4. Step 4: Simplify right side
    7,381.52x = 40,813,817.03
  5. Step 5: Solve for x
    x = 40,813,817.03/7,381.52
  6. Step 6: Final answer
    x = 5,529.19

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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.