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Finding the Fourth Proportional to 45,894.72, 68,743.80 and 22,472.40

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Solution

The fourth proportional to 45,894.72, 68,743.80 and 22,472.40 is: 33,660.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,894.72 : 68,743.80 = 22,472.40 : x
  2. Step 2: Convert to fraction form
    45,894.72/68,743.80 = 22,472.40/x
  3. Step 3: Cross multiply
    45,894.72x = 68,743.80 × 22,472.40
  4. Step 4: Simplify right side
    45,894.72x = 1,544,838,171.12
  5. Step 5: Solve for x
    x = 1,544,838,171.12/45,894.72
  6. Step 6: Final answer
    x = 33,660.48

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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.