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Finding the Fourth Proportional to 38,963.30, 53,769.93 and 22,195.94

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Solution

The fourth proportional to 38,963.30, 53,769.93 and 22,195.94 is: 30,630.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,963.30 : 53,769.93 = 22,195.94 : x
  2. Step 2: Convert to fraction form
    38,963.30/53,769.93 = 22,195.94/x
  3. Step 3: Cross multiply
    38,963.30x = 53,769.93 × 22,195.94
  4. Step 4: Simplify right side
    38,963.30x = 1,193,474,140.08
  5. Step 5: Solve for x
    x = 1,193,474,140.08/38,963.30
  6. Step 6: Final answer
    x = 30,630.73

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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.