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Finding the Fourth Proportional to 9,268.80, 13,903.20 and 6,169.20

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Solution

The fourth proportional to 9,268.80, 13,903.20 and 6,169.20 is: 9,253.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,268.80 : 13,903.20 = 6,169.20 : x
  2. Step 2: Convert to fraction form
    9,268.80/13,903.20 = 6,169.20/x
  3. Step 3: Cross multiply
    9,268.80x = 13,903.20 × 6,169.20
  4. Step 4: Simplify right side
    9,268.80x = 85,771,621.44
  5. Step 5: Solve for x
    x = 85,771,621.44/9,268.80
  6. Step 6: Final answer
    x = 9,253.80

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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.