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Finding the Fourth Proportional to 16,915.68, 25,375.68 and 6,526.08

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Solution

The fourth proportional to 16,915.68, 25,375.68 and 6,526.08 is: 9,789.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,915.68 : 25,375.68 = 6,526.08 : x
  2. Step 2: Convert to fraction form
    16,915.68/25,375.68 = 6,526.08/x
  3. Step 3: Cross multiply
    16,915.68x = 25,375.68 × 6,526.08
  4. Step 4: Simplify right side
    16,915.68x = 165,603,717.73
  5. Step 5: Solve for x
    x = 165,603,717.73/16,915.68
  6. Step 6: Final answer
    x = 9,789.95

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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.