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Finding the Fourth Proportional to 8,162.88, 11,268.96 and 7,366.08

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Solution

The fourth proportional to 8,162.88, 11,268.96 and 7,366.08 is: 10,168.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,162.88 : 11,268.96 = 7,366.08 : x
  2. Step 2: Convert to fraction form
    8,162.88/11,268.96 = 7,366.08/x
  3. Step 3: Cross multiply
    8,162.88x = 11,268.96 × 7,366.08
  4. Step 4: Simplify right side
    8,162.88x = 83,008,060.88
  5. Step 5: Solve for x
    x = 83,008,060.88/8,162.88
  6. Step 6: Final answer
    x = 10,168.97

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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.