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Finding the Fourth Proportional to 12,843.80, 19,266.98 and 3,483.97

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Solution

The fourth proportional to 12,843.80, 19,266.98 and 3,483.97 is: 5,226.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,843.80 : 19,266.98 = 3,483.97 : x
  2. Step 2: Convert to fraction form
    12,843.80/19,266.98 = 3,483.97/x
  3. Step 3: Cross multiply
    12,843.80x = 19,266.98 × 3,483.97
  4. Step 4: Simplify right side
    12,843.80x = 67,125,514.72
  5. Step 5: Solve for x
    x = 67,125,514.72/12,843.80
  6. Step 6: Final answer
    x = 5,226.30

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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.