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Finding the Fourth Proportional to 43,674.78, 65,512.16 and 17,379.74

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Solution

The fourth proportional to 43,674.78, 65,512.16 and 17,379.74 is: 26,069.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,674.78 : 65,512.16 = 17,379.74 : x
  2. Step 2: Convert to fraction form
    43,674.78/65,512.16 = 17,379.74/x
  3. Step 3: Cross multiply
    43,674.78x = 65,512.16 × 17,379.74
  4. Step 4: Simplify right side
    43,674.78x = 1,138,584,307.64
  5. Step 5: Solve for x
    x = 1,138,584,307.64/43,674.78
  6. Step 6: Final answer
    x = 26,069.61

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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.