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Finding the Fourth Proportional to 17,782.74, 26,654.81 and 7,908.44

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Solution

The fourth proportional to 17,782.74, 26,654.81 and 7,908.44 is: 11,854.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,782.74 : 26,654.81 = 7,908.44 : x
  2. Step 2: Convert to fraction form
    17,782.74/26,654.81 = 7,908.44/x
  3. Step 3: Cross multiply
    17,782.74x = 26,654.81 × 7,908.44
  4. Step 4: Simplify right side
    17,782.74x = 210,797,792.78
  5. Step 5: Solve for x
    x = 210,797,792.78/17,782.74
  6. Step 6: Final answer
    x = 11,854.07

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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.