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Finding the Fourth Proportional to 22,522.78, 33,780.33 and 7,528.21

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Solution

The fourth proportional to 22,522.78, 33,780.33 and 7,528.21 is: 11,291.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,522.78 : 33,780.33 = 7,528.21 : x
  2. Step 2: Convert to fraction form
    22,522.78/33,780.33 = 7,528.21/x
  3. Step 3: Cross multiply
    22,522.78x = 33,780.33 × 7,528.21
  4. Step 4: Simplify right side
    22,522.78x = 254,305,418.11
  5. Step 5: Solve for x
    x = 254,305,418.11/22,522.78
  6. Step 6: Final answer
    x = 11,291.03

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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.