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Finding the Fourth Proportional to 8,162.64, 11,264.40 and 4,436.64

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Solution

The fourth proportional to 8,162.64, 11,264.40 and 4,436.64 is: 6,122.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,162.64 : 11,264.40 = 4,436.64 : x
  2. Step 2: Convert to fraction form
    8,162.64/11,264.40 = 4,436.64/x
  3. Step 3: Cross multiply
    8,162.64x = 11,264.40 × 4,436.64
  4. Step 4: Simplify right side
    8,162.64x = 49,976,087.62
  5. Step 5: Solve for x
    x = 49,976,087.62/8,162.64
  6. Step 6: Final answer
    x = 6,122.54

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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.