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Finding the Fourth Proportional to 21,406.27, 32,124.01 and 7,555.27

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Solution

The fourth proportional to 21,406.27, 32,124.01 and 7,555.27 is: 11,338.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,406.27 : 32,124.01 = 7,555.27 : x
  2. Step 2: Convert to fraction form
    21,406.27/32,124.01 = 7,555.27/x
  3. Step 3: Cross multiply
    21,406.27x = 32,124.01 × 7,555.27
  4. Step 4: Simplify right side
    21,406.27x = 242,705,469.83
  5. Step 5: Solve for x
    x = 242,705,469.83/21,406.27
  6. Step 6: Final answer
    x = 11,338.06

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