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Finding the Fourth Proportional to 4,885.98, 6,742.13 and 2,761.62

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Solution

The fourth proportional to 4,885.98, 6,742.13 and 2,761.62 is: 3,810.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,885.98 : 6,742.13 = 2,761.62 : x
  2. Step 2: Convert to fraction form
    4,885.98/6,742.13 = 2,761.62/x
  3. Step 3: Cross multiply
    4,885.98x = 6,742.13 × 2,761.62
  4. Step 4: Simplify right side
    4,885.98x = 18,619,201.05
  5. Step 5: Solve for x
    x = 18,619,201.05/4,885.98
  6. Step 6: Final answer
    x = 3,810.74

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1.5x scale

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.