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Finding the Fourth Proportional to 8,770.84, 12,103.44 and 4,993.72

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Solution

The fourth proportional to 8,770.84, 12,103.44 and 4,993.72 is: 6,891.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,770.84 : 12,103.44 = 4,993.72 : x
  2. Step 2: Convert to fraction form
    8,770.84/12,103.44 = 4,993.72/x
  3. Step 3: Cross multiply
    8,770.84x = 12,103.44 × 4,993.72
  4. Step 4: Simplify right side
    8,770.84x = 60,441,190.40
  5. Step 5: Solve for x
    x = 60,441,190.40/8,770.84
  6. Step 6: Final answer
    x = 6,891.15

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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.