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Finding the Fourth Proportional to 7,219.53, 10,836.11 and 3,712.01

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Solution

The fourth proportional to 7,219.53, 10,836.11 and 3,712.01 is: 5,571.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219.53 : 10,836.11 = 3,712.01 : x
  2. Step 2: Convert to fraction form
    7,219.53/10,836.11 = 3,712.01/x
  3. Step 3: Cross multiply
    7,219.53x = 10,836.11 × 3,712.01
  4. Step 4: Simplify right side
    7,219.53x = 40,223,675.94
  5. Step 5: Solve for x
    x = 40,223,675.94/7,219.53
  6. Step 6: Final answer
    x = 5,571.51

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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.