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Finding the Fourth Proportional to 22,330.76, 33,629.87 and 20,337.86

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Solution

The fourth proportional to 22,330.76, 33,629.87 and 20,337.86 is: 30,628.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,330.76 : 33,629.87 = 20,337.86 : x
  2. Step 2: Convert to fraction form
    22,330.76/33,629.87 = 20,337.86/x
  3. Step 3: Cross multiply
    22,330.76x = 33,629.87 × 20,337.86
  4. Step 4: Simplify right side
    22,330.76x = 683,959,587.88
  5. Step 5: Solve for x
    x = 683,959,587.88/22,330.76
  6. Step 6: Final answer
    x = 30,628.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.