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Finding the Fourth Proportional to 22,620.46, 33,874.80 and 13,235.80

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Solution

The fourth proportional to 22,620.46, 33,874.80 and 13,235.80 is: 19,821.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,620.46 : 33,874.80 = 13,235.80 : x
  2. Step 2: Convert to fraction form
    22,620.46/33,874.80 = 13,235.80/x
  3. Step 3: Cross multiply
    22,620.46x = 33,874.80 × 13,235.80
  4. Step 4: Simplify right side
    22,620.46x = 448,360,077.84
  5. Step 5: Solve for x
    x = 448,360,077.84/22,620.46
  6. Step 6: Final answer
    x = 19,821.00

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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.