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Finding the Fourth Proportional to 8,912.11, 12,277.27 and 7,495.83

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Solution

The fourth proportional to 8,912.11, 12,277.27 and 7,495.83 is: 10,326.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.11 : 12,277.27 = 7,495.83 : x
  2. Step 2: Convert to fraction form
    8,912.11/12,277.27 = 7,495.83/x
  3. Step 3: Cross multiply
    8,912.11x = 12,277.27 × 7,495.83
  4. Step 4: Simplify right side
    8,912.11x = 92,028,328.78
  5. Step 5: Solve for x
    x = 92,028,328.78/8,912.11
  6. Step 6: Final answer
    x = 10,326.21

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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.