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Finding the Fourth Proportional to 33,338.60, 50,007.90 and 31,005.80

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Solution

The fourth proportional to 33,338.60, 50,007.90 and 31,005.80 is: 46,508.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,338.60 : 50,007.90 = 31,005.80 : x
  2. Step 2: Convert to fraction form
    33,338.60/50,007.90 = 31,005.80/x
  3. Step 3: Cross multiply
    33,338.60x = 50,007.90 × 31,005.80
  4. Step 4: Simplify right side
    33,338.60x = 1,550,534,945.82
  5. Step 5: Solve for x
    x = 1,550,534,945.82/33,338.60
  6. Step 6: Final answer
    x = 46,508.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.