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Finding the Fourth Proportional to 8,768.84, 13,173.60 and 8,296.80

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Solution

The fourth proportional to 8,768.84, 13,173.60 and 8,296.80 is: 12,464.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,768.84 : 13,173.60 = 8,296.80 : x
  2. Step 2: Convert to fraction form
    8,768.84/13,173.60 = 8,296.80/x
  3. Step 3: Cross multiply
    8,768.84x = 13,173.60 × 8,296.80
  4. Step 4: Simplify right side
    8,768.84x = 109,298,724.48
  5. Step 5: Solve for x
    x = 109,298,724.48/8,768.84
  6. Step 6: Final answer
    x = 12,464.45

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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.