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Finding the Fourth Proportional to 6,335.18, 8,742.21 and 3,540.68

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Solution

The fourth proportional to 6,335.18, 8,742.21 and 3,540.68 is: 4,885.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,335.18 : 8,742.21 = 3,540.68 : x
  2. Step 2: Convert to fraction form
    6,335.18/8,742.21 = 3,540.68/x
  3. Step 3: Cross multiply
    6,335.18x = 8,742.21 × 3,540.68
  4. Step 4: Simplify right side
    6,335.18x = 30,953,324.39
  5. Step 5: Solve for x
    x = 30,953,324.39/6,335.18
  6. Step 6: Final answer
    x = 4,885.95

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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.