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Finding the Fourth Proportional to 22,910.40, 34,376.40 and 17,078.40

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Solution

The fourth proportional to 22,910.40, 34,376.40 and 17,078.40 is: 25,625.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,910.40 : 34,376.40 = 17,078.40 : x
  2. Step 2: Convert to fraction form
    22,910.40/34,376.40 = 17,078.40/x
  3. Step 3: Cross multiply
    22,910.40x = 34,376.40 × 17,078.40
  4. Step 4: Simplify right side
    22,910.40x = 587,093,909.76
  5. Step 5: Solve for x
    x = 587,093,909.76/22,910.40
  6. Step 6: Final answer
    x = 25,625.65

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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.