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Finding the Fourth Proportional to 17,544.78, 26,324.46 and 7,678.98

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Solution

The fourth proportional to 17,544.78, 26,324.46 and 7,678.98 is: 11,521.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,544.78 : 26,324.46 = 7,678.98 : x
  2. Step 2: Convert to fraction form
    17,544.78/26,324.46 = 7,678.98/x
  3. Step 3: Cross multiply
    17,544.78x = 26,324.46 × 7,678.98
  4. Step 4: Simplify right side
    17,544.78x = 202,145,001.85
  5. Step 5: Solve for x
    x = 202,145,001.85/17,544.78
  6. Step 6: Final answer
    x = 11,521.66

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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.