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Finding the Fourth Proportional to 22,456.80, 33,686.80 and 6,874.40

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Solution

The fourth proportional to 22,456.80, 33,686.80 and 6,874.40 is: 10,312.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,456.80 : 33,686.80 = 6,874.40 : x
  2. Step 2: Convert to fraction form
    22,456.80/33,686.80 = 6,874.40/x
  3. Step 3: Cross multiply
    22,456.80x = 33,686.80 × 6,874.40
  4. Step 4: Simplify right side
    22,456.80x = 231,576,537.92
  5. Step 5: Solve for x
    x = 231,576,537.92/22,456.80
  6. Step 6: Final answer
    x = 10,312.09

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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.