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Finding the Fourth Proportional to 11,836.31, 17,737.54 and 8,691.64

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Solution

The fourth proportional to 11,836.31, 17,737.54 and 8,691.64 is: 13,025.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,836.31 : 17,737.54 = 8,691.64 : x
  2. Step 2: Convert to fraction form
    11,836.31/17,737.54 = 8,691.64/x
  3. Step 3: Cross multiply
    11,836.31x = 17,737.54 × 8,691.64
  4. Step 4: Simplify right side
    11,836.31x = 154,168,180.02
  5. Step 5: Solve for x
    x = 154,168,180.02/11,836.31
  6. Step 6: Final answer
    x = 13,025.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.