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Finding the Fourth Proportional to 18,796.83, 25,996.05 and 16,434.87

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Solution

The fourth proportional to 18,796.83, 25,996.05 and 16,434.87 is: 22,729.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,796.83 : 25,996.05 = 16,434.87 : x
  2. Step 2: Convert to fraction form
    18,796.83/25,996.05 = 16,434.87/x
  3. Step 3: Cross multiply
    18,796.83x = 25,996.05 × 16,434.87
  4. Step 4: Simplify right side
    18,796.83x = 427,241,702.26
  5. Step 5: Solve for x
    x = 427,241,702.26/18,796.83
  6. Step 6: Final answer
    x = 22,729.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.