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Finding the Fourth Proportional to 30,578.88, 45,794.43 and 17,391.27

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Solution

The fourth proportional to 30,578.88, 45,794.43 and 17,391.27 is: 26,044.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,578.88 : 45,794.43 = 17,391.27 : x
  2. Step 2: Convert to fraction form
    30,578.88/45,794.43 = 17,391.27/x
  3. Step 3: Cross multiply
    30,578.88x = 45,794.43 × 17,391.27
  4. Step 4: Simplify right side
    30,578.88x = 796,423,296.63
  5. Step 5: Solve for x
    x = 796,423,296.63/30,578.88
  6. Step 6: Final answer
    x = 26,044.88

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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.