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Finding the Fourth Proportional to 8,938.88, 12,335.84 and 4,906.04

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Solution

The fourth proportional to 8,938.88, 12,335.84 and 4,906.04 is: 6,770.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938.88 : 12,335.84 = 4,906.04 : x
  2. Step 2: Convert to fraction form
    8,938.88/12,335.84 = 4,906.04/x
  3. Step 3: Cross multiply
    8,938.88x = 12,335.84 × 4,906.04
  4. Step 4: Simplify right side
    8,938.88x = 60,520,124.47
  5. Step 5: Solve for x
    x = 60,520,124.47/8,938.88
  6. Step 6: Final answer
    x = 6,770.44

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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.