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Finding the Fourth Proportional to 16,878.98, 25,318.49 and 4,398.98

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Solution

The fourth proportional to 16,878.98, 25,318.49 and 4,398.98 is: 6,598.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,878.98 : 25,318.49 = 4,398.98 : x
  2. Step 2: Convert to fraction form
    16,878.98/25,318.49 = 4,398.98/x
  3. Step 3: Cross multiply
    16,878.98x = 25,318.49 × 4,398.98
  4. Step 4: Simplify right side
    16,878.98x = 111,375,382.55
  5. Step 5: Solve for x
    x = 111,375,382.55/16,878.98
  6. Step 6: Final answer
    x = 6,598.47

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1.5x scale

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.