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Finding the Fourth Proportional to 8,716.84, 13,053.40 and 6,770.44

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Solution

The fourth proportional to 8,716.84, 13,053.40 and 6,770.44 is: 10,138.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,716.84 : 13,053.40 = 6,770.44 : x
  2. Step 2: Convert to fraction form
    8,716.84/13,053.40 = 6,770.44/x
  3. Step 3: Cross multiply
    8,716.84x = 13,053.40 × 6,770.44
  4. Step 4: Simplify right side
    8,716.84x = 88,377,261.50
  5. Step 5: Solve for x
    x = 88,377,261.50/8,716.84
  6. Step 6: Final answer
    x = 10,138.68

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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.