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Finding the Fourth Proportional to 16,779.98, 25,151.49 and 6,913.88

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Solution

The fourth proportional to 16,779.98, 25,151.49 and 6,913.88 is: 10,363.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,779.98 : 25,151.49 = 6,913.88 : x
  2. Step 2: Convert to fraction form
    16,779.98/25,151.49 = 6,913.88/x
  3. Step 3: Cross multiply
    16,779.98x = 25,151.49 × 6,913.88
  4. Step 4: Simplify right side
    16,779.98x = 173,894,257.92
  5. Step 5: Solve for x
    x = 173,894,257.92/16,779.98
  6. Step 6: Final answer
    x = 10,363.20

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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.