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Finding the Fourth Proportional to 33,898.82, 46,779.78 and 18,791.42

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Solution

The fourth proportional to 33,898.82, 46,779.78 and 18,791.42 is: 25,931.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,898.82 : 46,779.78 = 18,791.42 : x
  2. Step 2: Convert to fraction form
    33,898.82/46,779.78 = 18,791.42/x
  3. Step 3: Cross multiply
    33,898.82x = 46,779.78 × 18,791.42
  4. Step 4: Simplify right side
    33,898.82x = 879,058,493.49
  5. Step 5: Solve for x
    x = 879,058,493.49/33,898.82
  6. Step 6: Final answer
    x = 25,931.83

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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.