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Finding the Fourth Proportional to 73,103.69, 100,883.39 and 39,569.69

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Solution

The fourth proportional to 73,103.69, 100,883.39 and 39,569.69 is: 54,606.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,103.69 : 100,883.39 = 39,569.69 : x
  2. Step 2: Convert to fraction form
    73,103.69/100,883.39 = 39,569.69/x
  3. Step 3: Cross multiply
    73,103.69x = 100,883.39 × 39,569.69
  4. Step 4: Simplify right side
    73,103.69x = 3,991,924,468.45
  5. Step 5: Solve for x
    x = 3,991,924,468.45/73,103.69
  6. Step 6: Final answer
    x = 54,606.33

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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.