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Finding the Fourth Proportional to 13,952.69, 20,929.20 and 4,092.17

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Solution

The fourth proportional to 13,952.69, 20,929.20 and 4,092.17 is: 6,138.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,952.69 : 20,929.20 = 4,092.17 : x
  2. Step 2: Convert to fraction form
    13,952.69/20,929.20 = 4,092.17/x
  3. Step 3: Cross multiply
    13,952.69x = 20,929.20 × 4,092.17
  4. Step 4: Simplify right side
    13,952.69x = 85,645,724.37
  5. Step 5: Solve for x
    x = 85,645,724.37/13,952.69
  6. Step 6: Final answer
    x = 6,138.30

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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.