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Finding the Fourth Proportional to 8,632.22, 11,914.43 and 6,111.71

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Solution

The fourth proportional to 8,632.22, 11,914.43 and 6,111.71 is: 8,435.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,632.22 : 11,914.43 = 6,111.71 : x
  2. Step 2: Convert to fraction form
    8,632.22/11,914.43 = 6,111.71/x
  3. Step 3: Cross multiply
    8,632.22x = 11,914.43 × 6,111.71
  4. Step 4: Simplify right side
    8,632.22x = 72,817,540.98
  5. Step 5: Solve for x
    x = 72,817,540.98/8,632.22
  6. Step 6: Final answer
    x = 8,435.55

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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.