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Finding the Fourth Proportional to 22,130.69, 33,217.90 and 11,742.44

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Solution

The fourth proportional to 22,130.69, 33,217.90 and 11,742.44 is: 17,625.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,130.69 : 33,217.90 = 11,742.44 : x
  2. Step 2: Convert to fraction form
    22,130.69/33,217.90 = 11,742.44/x
  3. Step 3: Cross multiply
    22,130.69x = 33,217.90 × 11,742.44
  4. Step 4: Simplify right side
    22,130.69x = 390,059,143.99
  5. Step 5: Solve for x
    x = 390,059,143.99/22,130.69
  6. Step 6: Final answer
    x = 17,625.26

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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.