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Finding the Fourth Proportional to 17,702.51, 26,553.84 and 7,172.73

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Solution

The fourth proportional to 17,702.51, 26,553.84 and 7,172.73 is: 10,759.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,702.51 : 26,553.84 = 7,172.73 : x
  2. Step 2: Convert to fraction form
    17,702.51/26,553.84 = 7,172.73/x
  3. Step 3: Cross multiply
    17,702.51x = 26,553.84 × 7,172.73
  4. Step 4: Simplify right side
    17,702.51x = 190,463,524.78
  5. Step 5: Solve for x
    x = 190,463,524.78/17,702.51
  6. Step 6: Final answer
    x = 10,759.13

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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.