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Finding the Fourth Proportional to 6,889.92, 10,335.84 and 2,272.32

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Solution

The fourth proportional to 6,889.92, 10,335.84 and 2,272.32 is: 3,408.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,889.92 : 10,335.84 = 2,272.32 : x
  2. Step 2: Convert to fraction form
    6,889.92/10,335.84 = 2,272.32/x
  3. Step 3: Cross multiply
    6,889.92x = 10,335.84 × 2,272.32
  4. Step 4: Simplify right side
    6,889.92x = 23,486,335.95
  5. Step 5: Solve for x
    x = 23,486,335.95/6,889.92
  6. Step 6: Final answer
    x = 3,408.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.