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Finding the Fourth Proportional to 84,337.69, 126,408.12 and 46,879.85

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Solution

The fourth proportional to 84,337.69, 126,408.12 and 46,879.85 is: 70,265.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,337.69 : 126,408.12 = 46,879.85 : x
  2. Step 2: Convert to fraction form
    84,337.69/126,408.12 = 46,879.85/x
  3. Step 3: Cross multiply
    84,337.69x = 126,408.12 × 46,879.85
  4. Step 4: Simplify right side
    84,337.69x = 5,925,992,896.54
  5. Step 5: Solve for x
    x = 5,925,992,896.54/84,337.69
  6. Step 6: Final answer
    x = 70,265.06

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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.