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Finding the Fourth Proportional to 5,768.11, 8,653.50 and 1,872.52

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Solution

The fourth proportional to 5,768.11, 8,653.50 and 1,872.52 is: 2,809.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,768.11 : 8,653.50 = 1,872.52 : x
  2. Step 2: Convert to fraction form
    5,768.11/8,653.50 = 1,872.52/x
  3. Step 3: Cross multiply
    5,768.11x = 8,653.50 × 1,872.52
  4. Step 4: Simplify right side
    5,768.11x = 16,203,830.19
  5. Step 5: Solve for x
    x = 16,203,830.19/5,768.11
  6. Step 6: Final answer
    x = 2,809.21

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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.