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Finding the Fourth Proportional to 21,993.58, 32,991.91 and 8,846.01

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Solution

The fourth proportional to 21,993.58, 32,991.91 and 8,846.01 is: 13,269.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,993.58 : 32,991.91 = 8,846.01 : x
  2. Step 2: Convert to fraction form
    21,993.58/32,991.91 = 8,846.01/x
  3. Step 3: Cross multiply
    21,993.58x = 32,991.91 × 8,846.01
  4. Step 4: Simplify right side
    21,993.58x = 291,846,743.66
  5. Step 5: Solve for x
    x = 291,846,743.66/21,993.58
  6. Step 6: Final answer
    x = 13,269.64

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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.