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Finding the Fourth Proportional to 47,739.60, 65,910.60 and 43,246.80

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Solution

The fourth proportional to 47,739.60, 65,910.60 and 43,246.80 is: 59,707.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,739.60 : 65,910.60 = 43,246.80 : x
  2. Step 2: Convert to fraction form
    47,739.60/65,910.60 = 43,246.80/x
  3. Step 3: Cross multiply
    47,739.60x = 65,910.60 × 43,246.80
  4. Step 4: Simplify right side
    47,739.60x = 2,850,422,536.08
  5. Step 5: Solve for x
    x = 2,850,422,536.08/47,739.60
  6. Step 6: Final answer
    x = 59,707.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.