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Finding the Fourth Proportional to 17,381.52, 23,990.16 and 11,092.80

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Solution

The fourth proportional to 17,381.52, 23,990.16 and 11,092.80 is: 15,310.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,381.52 : 23,990.16 = 11,092.80 : x
  2. Step 2: Convert to fraction form
    17,381.52/23,990.16 = 11,092.80/x
  3. Step 3: Cross multiply
    17,381.52x = 23,990.16 × 11,092.80
  4. Step 4: Simplify right side
    17,381.52x = 266,118,046.85
  5. Step 5: Solve for x
    x = 266,118,046.85/17,381.52
  6. Step 6: Final answer
    x = 15,310.40

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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.