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Finding the Fourth Proportional to 16,680.92, 25,017.64 and 4,992.64

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Solution

The fourth proportional to 16,680.92, 25,017.64 and 4,992.64 is: 7,487.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,680.92 : 25,017.64 = 4,992.64 : x
  2. Step 2: Convert to fraction form
    16,680.92/25,017.64 = 4,992.64/x
  3. Step 3: Cross multiply
    16,680.92x = 25,017.64 × 4,992.64
  4. Step 4: Simplify right side
    16,680.92x = 124,904,070.17
  5. Step 5: Solve for x
    x = 124,904,070.17/16,680.92
  6. Step 6: Final answer
    x = 7,487.84

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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.