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Finding the Fourth Proportional to 16,822.40, 25,219.80 and 7,933.40

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Solution

The fourth proportional to 16,822.40, 25,219.80 and 7,933.40 is: 11,893.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,822.40 : 25,219.80 = 7,933.40 : x
  2. Step 2: Convert to fraction form
    16,822.40/25,219.80 = 7,933.40/x
  3. Step 3: Cross multiply
    16,822.40x = 25,219.80 × 7,933.40
  4. Step 4: Simplify right side
    16,822.40x = 200,078,761.32
  5. Step 5: Solve for x
    x = 200,078,761.32/16,822.40
  6. Step 6: Final answer
    x = 11,893.59

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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.