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Finding the Fourth Proportional to 38,863.80, 53,630.46 and 22,953.40

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Solution

The fourth proportional to 38,863.80, 53,630.46 and 22,953.40 is: 31,674.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,863.80 : 53,630.46 = 22,953.40 : x
  2. Step 2: Convert to fraction form
    38,863.80/53,630.46 = 22,953.40/x
  3. Step 3: Cross multiply
    38,863.80x = 53,630.46 × 22,953.40
  4. Step 4: Simplify right side
    38,863.80x = 1,231,001,400.56
  5. Step 5: Solve for x
    x = 1,231,001,400.56/38,863.80
  6. Step 6: Final answer
    x = 31,674.76

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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.