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Finding the Fourth Proportional to 19,456.80, 29,184.90 and 13,201.26

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Solution

The fourth proportional to 19,456.80, 29,184.90 and 13,201.26 is: 19,801.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,456.80 : 29,184.90 = 13,201.26 : x
  2. Step 2: Convert to fraction form
    19,456.80/29,184.90 = 13,201.26/x
  3. Step 3: Cross multiply
    19,456.80x = 29,184.90 × 13,201.26
  4. Step 4: Simplify right side
    19,456.80x = 385,277,452.97
  5. Step 5: Solve for x
    x = 385,277,452.97/19,456.80
  6. Step 6: Final answer
    x = 19,801.69

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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.