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Finding the Fourth Proportional to 43,077.84, 64,668.60 and 25,659.60

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Solution

The fourth proportional to 43,077.84, 64,668.60 and 25,659.60 is: 38,520.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,077.84 : 64,668.60 = 25,659.60 : x
  2. Step 2: Convert to fraction form
    43,077.84/64,668.60 = 25,659.60/x
  3. Step 3: Cross multiply
    43,077.84x = 64,668.60 × 25,659.60
  4. Step 4: Simplify right side
    43,077.84x = 1,659,370,408.56
  5. Step 5: Solve for x
    x = 1,659,370,408.56/43,077.84
  6. Step 6: Final answer
    x = 38,520.28

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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.