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Finding the Fourth Proportional to 21,803.13, 32,694.99 and 6,217.11

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Solution

The fourth proportional to 21,803.13, 32,694.99 and 6,217.11 is: 9,322.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,803.13 : 32,694.99 = 6,217.11 : x
  2. Step 2: Convert to fraction form
    21,803.13/32,694.99 = 6,217.11/x
  3. Step 3: Cross multiply
    21,803.13x = 32,694.99 × 6,217.11
  4. Step 4: Simplify right side
    21,803.13x = 203,268,349.28
  5. Step 5: Solve for x
    x = 203,268,349.28/21,803.13
  6. Step 6: Final answer
    x = 9,322.90

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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.