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Finding the Fourth Proportional to 7,251.36, 10,872.72 and 4,914.24

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Solution

The fourth proportional to 7,251.36, 10,872.72 and 4,914.24 is: 7,368.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,251.36 : 10,872.72 = 4,914.24 : x
  2. Step 2: Convert to fraction form
    7,251.36/10,872.72 = 4,914.24/x
  3. Step 3: Cross multiply
    7,251.36x = 10,872.72 × 4,914.24
  4. Step 4: Simplify right side
    7,251.36x = 53,431,155.53
  5. Step 5: Solve for x
    x = 53,431,155.53/7,251.36
  6. Step 6: Final answer
    x = 7,368.43

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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.