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Finding the Fourth Proportional to 16,980.84, 25,476.12 and 8,654.04

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Solution

The fourth proportional to 16,980.84, 25,476.12 and 8,654.04 is: 12,983.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,980.84 : 25,476.12 = 8,654.04 : x
  2. Step 2: Convert to fraction form
    16,980.84/25,476.12 = 8,654.04/x
  3. Step 3: Cross multiply
    16,980.84x = 25,476.12 × 8,654.04
  4. Step 4: Simplify right side
    16,980.84x = 220,471,361.52
  5. Step 5: Solve for x
    x = 220,471,361.52/16,980.84
  6. Step 6: Final answer
    x = 12,983.54

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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.