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Finding the Fourth Proportional to 4,863.78, 6,711.63 and 2,873.98

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Solution

The fourth proportional to 4,863.78, 6,711.63 and 2,873.98 is: 3,965.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,863.78 : 6,711.63 = 2,873.98 : x
  2. Step 2: Convert to fraction form
    4,863.78/6,711.63 = 2,873.98/x
  3. Step 3: Cross multiply
    4,863.78x = 6,711.63 × 2,873.98
  4. Step 4: Simplify right side
    4,863.78x = 19,289,088.00
  5. Step 5: Solve for x
    x = 19,289,088.00/4,863.78
  6. Step 6: Final answer
    x = 3,965.86

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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.