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Finding the Fourth Proportional to 4,872.03, 6,721.02 and 2,881.86

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Solution

The fourth proportional to 4,872.03, 6,721.02 and 2,881.86 is: 3,975.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,872.03 : 6,721.02 = 2,881.86 : x
  2. Step 2: Convert to fraction form
    4,872.03/6,721.02 = 2,881.86/x
  3. Step 3: Cross multiply
    4,872.03x = 6,721.02 × 2,881.86
  4. Step 4: Simplify right side
    4,872.03x = 19,369,038.70
  5. Step 5: Solve for x
    x = 19,369,038.70/4,872.03
  6. Step 6: Final answer
    x = 3,975.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.