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Finding the Fourth Proportional to 16,998, 25,499.88 and 5,308.92

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Solution

The fourth proportional to 16,998, 25,499.88 and 5,308.92 is: 7,964.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,998 : 25,499.88 = 5,308.92 : x
  2. Step 2: Convert to fraction form
    16,998/25,499.88 = 5,308.92/x
  3. Step 3: Cross multiply
    16,998x = 25,499.88 × 5,308.92
  4. Step 4: Simplify right side
    16,998x = 135,376,822.93
  5. Step 5: Solve for x
    x = 135,376,822.93/16,998
  6. Step 6: Final answer
    x = 7,964.28

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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.