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Finding the Fourth Proportional to 11,696.16, 16,141.06 and 6,660.24

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Solution

The fourth proportional to 11,696.16, 16,141.06 and 6,660.24 is: 9,191.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,696.16 : 16,141.06 = 6,660.24 : x
  2. Step 2: Convert to fraction form
    11,696.16/16,141.06 = 6,660.24/x
  3. Step 3: Cross multiply
    11,696.16x = 16,141.06 × 6,660.24
  4. Step 4: Simplify right side
    11,696.16x = 107,503,333.45
  5. Step 5: Solve for x
    x = 107,503,333.45/11,696.16
  6. Step 6: Final answer
    x = 9,191.34

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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.