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Finding the Fourth Proportional to 43,778.16, 65,673.72 and 16,074

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Solution

The fourth proportional to 43,778.16, 65,673.72 and 16,074 is: 24,113.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,778.16 : 65,673.72 = 16,074 : x
  2. Step 2: Convert to fraction form
    43,778.16/65,673.72 = 16,074/x
  3. Step 3: Cross multiply
    43,778.16x = 65,673.72 × 16,074
  4. Step 4: Simplify right side
    43,778.16x = 1,055,639,375.28
  5. Step 5: Solve for x
    x = 1,055,639,375.28/43,778.16
  6. Step 6: Final answer
    x = 24,113.38

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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.