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Finding the Fourth Proportional to 44,406.87, 66,657.72 and 19,118.91

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Solution

The fourth proportional to 44,406.87, 66,657.72 and 19,118.91 is: 28,698.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,406.87 : 66,657.72 = 19,118.91 : x
  2. Step 2: Convert to fraction form
    44,406.87/66,657.72 = 19,118.91/x
  3. Step 3: Cross multiply
    44,406.87x = 66,657.72 × 19,118.91
  4. Step 4: Simplify right side
    44,406.87x = 1,274,422,771.21
  5. Step 5: Solve for x
    x = 1,274,422,771.21/44,406.87
  6. Step 6: Final answer
    x = 28,698.78

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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.