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Finding the Fourth Proportional to 16,669.82, 24,995 and 4,979.90

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Solution

The fourth proportional to 16,669.82, 24,995 and 4,979.90 is: 7,466.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,669.82 : 24,995 = 4,979.90 : x
  2. Step 2: Convert to fraction form
    16,669.82/24,995 = 4,979.90/x
  3. Step 3: Cross multiply
    16,669.82x = 24,995 × 4,979.90
  4. Step 4: Simplify right side
    16,669.82x = 124,472,600.50
  5. Step 5: Solve for x
    x = 124,472,600.50/16,669.82
  6. Step 6: Final answer
    x = 7,466.94

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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.