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Finding the Fourth Proportional to 73,037.50, 100,791.76 and 39,503.50

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Solution

The fourth proportional to 73,037.50, 100,791.76 and 39,503.50 is: 54,514.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,037.50 : 100,791.76 = 39,503.50 : x
  2. Step 2: Convert to fraction form
    73,037.50/100,791.76 = 39,503.50/x
  3. Step 3: Cross multiply
    73,037.50x = 100,791.76 × 39,503.50
  4. Step 4: Simplify right side
    73,037.50x = 3,981,627,291.16
  5. Step 5: Solve for x
    x = 3,981,627,291.16/73,037.50
  6. Step 6: Final answer
    x = 54,514.84

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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.