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Finding the Fourth Proportional to 43,703.40, 65,555.10 and 29,879.40

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Solution

The fourth proportional to 43,703.40, 65,555.10 and 29,879.40 is: 44,819.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,703.40 : 65,555.10 = 29,879.40 : x
  2. Step 2: Convert to fraction form
    43,703.40/65,555.10 = 29,879.40/x
  3. Step 3: Cross multiply
    43,703.40x = 65,555.10 × 29,879.40
  4. Step 4: Simplify right side
    43,703.40x = 1,958,747,054.94
  5. Step 5: Solve for x
    x = 1,958,747,054.94/43,703.40
  6. Step 6: Final answer
    x = 44,819.10

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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.