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Finding the Fourth Proportional to 16,779.58, 25,176.18 and 8,462

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Solution

The fourth proportional to 16,779.58, 25,176.18 and 8,462 is: 12,696.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,779.58 : 25,176.18 = 8,462 : x
  2. Step 2: Convert to fraction form
    16,779.58/25,176.18 = 8,462/x
  3. Step 3: Cross multiply
    16,779.58x = 25,176.18 × 8,462
  4. Step 4: Simplify right side
    16,779.58x = 213,040,835.16
  5. Step 5: Solve for x
    x = 213,040,835.16/16,779.58
  6. Step 6: Final answer
    x = 12,696.43

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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.