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Finding the Fourth Proportional to 9,201.19, 12,696.11 and 8,734.17

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Solution

The fourth proportional to 9,201.19, 12,696.11 and 8,734.17 is: 12,051.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,201.19 : 12,696.11 = 8,734.17 : x
  2. Step 2: Convert to fraction form
    9,201.19/12,696.11 = 8,734.17/x
  3. Step 3: Cross multiply
    9,201.19x = 12,696.11 × 8,734.17
  4. Step 4: Simplify right side
    9,201.19x = 110,890,004.91
  5. Step 5: Solve for x
    x = 110,890,004.91/9,201.19
  6. Step 6: Final answer
    x = 12,051.71

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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.