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Finding the Fourth Proportional to 16,643.68, 24,980.64 and 8,859.04

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Solution

The fourth proportional to 16,643.68, 24,980.64 and 8,859.04 is: 13,296.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,643.68 : 24,980.64 = 8,859.04 : x
  2. Step 2: Convert to fraction form
    16,643.68/24,980.64 = 8,859.04/x
  3. Step 3: Cross multiply
    16,643.68x = 24,980.64 × 8,859.04
  4. Step 4: Simplify right side
    16,643.68x = 221,304,488.99
  5. Step 5: Solve for x
    x = 221,304,488.99/16,643.68
  6. Step 6: Final answer
    x = 13,296.61

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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.