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Finding the Fourth Proportional to 4,503.72, 6,757.13 and 1,872.64

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Solution

The fourth proportional to 4,503.72, 6,757.13 and 1,872.64 is: 2,809.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,503.72 : 6,757.13 = 1,872.64 : x
  2. Step 2: Convert to fraction form
    4,503.72/6,757.13 = 1,872.64/x
  3. Step 3: Cross multiply
    4,503.72x = 6,757.13 × 1,872.64
  4. Step 4: Simplify right side
    4,503.72x = 12,653,659.71
  5. Step 5: Solve for x
    x = 12,653,659.71/4,503.72
  6. Step 6: Final answer
    x = 2,809.60

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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.