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Finding the Fourth Proportional to 7,381.53, 11,064.51 and 5,375.28

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Solution

The fourth proportional to 7,381.53, 11,064.51 and 5,375.28 is: 8,057.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,381.53 : 11,064.51 = 5,375.28 : x
  2. Step 2: Convert to fraction form
    7,381.53/11,064.51 = 5,375.28/x
  3. Step 3: Cross multiply
    7,381.53x = 11,064.51 × 5,375.28
  4. Step 4: Simplify right side
    7,381.53x = 59,474,839.31
  5. Step 5: Solve for x
    x = 59,474,839.31/7,381.53
  6. Step 6: Final answer
    x = 8,057.25

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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.