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Finding the Fourth Proportional to 4,863.50, 6,711.63 and 2,655.50

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Solution

The fourth proportional to 4,863.50, 6,711.63 and 2,655.50 is: 3,664.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,863.50 : 6,711.63 = 2,655.50 : x
  2. Step 2: Convert to fraction form
    4,863.50/6,711.63 = 2,655.50/x
  3. Step 3: Cross multiply
    4,863.50x = 6,711.63 × 2,655.50
  4. Step 4: Simplify right side
    4,863.50x = 17,822,733.47
  5. Step 5: Solve for x
    x = 17,822,733.47/4,863.50
  6. Step 6: Final answer
    x = 3,664.59

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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.