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Finding the Fourth Proportional to 16,699.84, 25,027.66 and 8,786.16

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Solution

The fourth proportional to 16,699.84, 25,027.66 and 8,786.16 is: 13,167.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,699.84 : 25,027.66 = 8,786.16 : x
  2. Step 2: Convert to fraction form
    16,699.84/25,027.66 = 8,786.16/x
  3. Step 3: Cross multiply
    16,699.84x = 25,027.66 × 8,786.16
  4. Step 4: Simplify right side
    16,699.84x = 219,897,025.19
  5. Step 5: Solve for x
    x = 219,897,025.19/16,699.84
  6. Step 6: Final answer
    x = 13,167.61

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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.