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Finding the Fourth Proportional to 8,885.16, 12,261.06 and 4,906.20

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Solution

The fourth proportional to 8,885.16, 12,261.06 and 4,906.20 is: 6,770.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,885.16 : 12,261.06 = 4,906.20 : x
  2. Step 2: Convert to fraction form
    8,885.16/12,261.06 = 4,906.20/x
  3. Step 3: Cross multiply
    8,885.16x = 12,261.06 × 4,906.20
  4. Step 4: Simplify right side
    8,885.16x = 60,155,212.57
  5. Step 5: Solve for x
    x = 60,155,212.57/8,885.16
  6. Step 6: Final answer
    x = 6,770.30

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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.