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Finding the Fourth Proportional to 64,246.60, 96,392.72 and 28,704.66

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Solution

The fourth proportional to 64,246.60, 96,392.72 and 28,704.66 is: 43,067.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,246.60 : 96,392.72 = 28,704.66 : x
  2. Step 2: Convert to fraction form
    64,246.60/96,392.72 = 28,704.66/x
  3. Step 3: Cross multiply
    64,246.60x = 96,392.72 × 28,704.66
  4. Step 4: Simplify right side
    64,246.60x = 2,766,920,110.55
  5. Step 5: Solve for x
    x = 2,766,920,110.55/64,246.60
  6. Step 6: Final answer
    x = 43,067.19

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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.