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Finding the Fourth Proportional to 33,879.98, 46,750.50 and 18,768.87

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Solution

The fourth proportional to 33,879.98, 46,750.50 and 18,768.87 is: 25,898.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,879.98 : 46,750.50 = 18,768.87 : x
  2. Step 2: Convert to fraction form
    33,879.98/46,750.50 = 18,768.87/x
  3. Step 3: Cross multiply
    33,879.98x = 46,750.50 × 18,768.87
  4. Step 4: Simplify right side
    33,879.98x = 877,454,056.94
  5. Step 5: Solve for x
    x = 877,454,056.94/33,879.98
  6. Step 6: Final answer
    x = 25,898.89

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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.