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Finding the Fourth Proportional to 73,038, 100,792.45 and 39,504

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Solution

The fourth proportional to 73,038, 100,792.45 and 39,504 is: 54,515.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,038 : 100,792.45 = 39,504 : x
  2. Step 2: Convert to fraction form
    73,038/100,792.45 = 39,504/x
  3. Step 3: Cross multiply
    73,038x = 100,792.45 × 39,504
  4. Step 4: Simplify right side
    73,038x = 3,981,704,944.80
  5. Step 5: Solve for x
    x = 3,981,704,944.80/73,038
  6. Step 6: Final answer
    x = 54,515.53

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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.