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Finding the Fourth Proportional to 13,894.91, 20,797.61 and 9,154.97

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Solution

The fourth proportional to 13,894.91, 20,797.61 and 9,154.97 is: 13,702.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,894.91 : 20,797.61 = 9,154.97 : x
  2. Step 2: Convert to fraction form
    13,894.91/20,797.61 = 9,154.97/x
  3. Step 3: Cross multiply
    13,894.91x = 20,797.61 × 9,154.97
  4. Step 4: Simplify right side
    13,894.91x = 190,401,460.72
  5. Step 5: Solve for x
    x = 190,401,460.72/13,894.91
  6. Step 6: Final answer
    x = 13,702.96

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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.