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Finding the Fourth Proportional to 25,991.97, 38,965.40 and 16,109.46

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Solution

The fourth proportional to 25,991.97, 38,965.40 and 16,109.46 is: 24,150.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,991.97 : 38,965.40 = 16,109.46 : x
  2. Step 2: Convert to fraction form
    25,991.97/38,965.40 = 16,109.46/x
  3. Step 3: Cross multiply
    25,991.97x = 38,965.40 × 16,109.46
  4. Step 4: Simplify right side
    25,991.97x = 627,711,472.14
  5. Step 5: Solve for x
    x = 627,711,472.14/25,991.97
  6. Step 6: Final answer
    x = 24,150.21

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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.