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Finding the Fourth Proportional to 33,171.72, 45,774.90 and 18,267.72

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Solution

The fourth proportional to 33,171.72, 45,774.90 and 18,267.72 is: 25,208.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,171.72 : 45,774.90 = 18,267.72 : x
  2. Step 2: Convert to fraction form
    33,171.72/45,774.90 = 18,267.72/x
  3. Step 3: Cross multiply
    33,171.72x = 45,774.90 × 18,267.72
  4. Step 4: Simplify right side
    33,171.72x = 836,203,056.23
  5. Step 5: Solve for x
    x = 836,203,056.23/33,171.72
  6. Step 6: Final answer
    x = 25,208.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.