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Finding the Fourth Proportional to 25,490.70, 38,198.70 and 22,858.20

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Solution

The fourth proportional to 25,490.70, 38,198.70 and 22,858.20 is: 34,253.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,490.70 : 38,198.70 = 22,858.20 : x
  2. Step 2: Convert to fraction form
    25,490.70/38,198.70 = 22,858.20/x
  3. Step 3: Cross multiply
    25,490.70x = 38,198.70 × 22,858.20
  4. Step 4: Simplify right side
    25,490.70x = 873,153,524.34
  5. Step 5: Solve for x
    x = 873,153,524.34/25,490.70
  6. Step 6: Final answer
    x = 34,253.81

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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.