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Finding the Fourth Proportional to 18,046.26, 24,902.98 and 9,979.61

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Solution

The fourth proportional to 18,046.26, 24,902.98 and 9,979.61 is: 13,771.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,046.26 : 24,902.98 = 9,979.61 : x
  2. Step 2: Convert to fraction form
    18,046.26/24,902.98 = 9,979.61/x
  3. Step 3: Cross multiply
    18,046.26x = 24,902.98 × 9,979.61
  4. Step 4: Simplify right side
    18,046.26x = 248,521,878.77
  5. Step 5: Solve for x
    x = 248,521,878.77/18,046.26
  6. Step 6: Final answer
    x = 13,771.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.