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Finding the Fourth Proportional to 16,807.75, 25,211.62 and 4,961.68

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Solution

The fourth proportional to 16,807.75, 25,211.62 and 4,961.68 is: 7,442.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,807.75 : 25,211.62 = 4,961.68 : x
  2. Step 2: Convert to fraction form
    16,807.75/25,211.62 = 4,961.68/x
  3. Step 3: Cross multiply
    16,807.75x = 25,211.62 × 4,961.68
  4. Step 4: Simplify right side
    16,807.75x = 125,091,915.29
  5. Step 5: Solve for x
    x = 125,091,915.29/16,807.75
  6. Step 6: Final answer
    x = 7,442.52

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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.