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Finding the Fourth Proportional to 11,803.73, 17,699.11 and 8,106.89

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Solution

The fourth proportional to 11,803.73, 17,699.11 and 8,106.89 is: 12,155.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,803.73 : 17,699.11 = 8,106.89 : x
  2. Step 2: Convert to fraction form
    11,803.73/17,699.11 = 8,106.89/x
  3. Step 3: Cross multiply
    11,803.73x = 17,699.11 × 8,106.89
  4. Step 4: Simplify right side
    11,803.73x = 143,484,629.11
  5. Step 5: Solve for x
    x = 143,484,629.11/11,803.73
  6. Step 6: Final answer
    x = 12,155.88

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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.