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Finding the Fourth Proportional to 43,854.60, 65,749.50 and 36,428.52

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Solution

The fourth proportional to 43,854.60, 65,749.50 and 36,428.52 is: 54,615.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,854.60 : 65,749.50 = 36,428.52 : x
  2. Step 2: Convert to fraction form
    43,854.60/65,749.50 = 36,428.52/x
  3. Step 3: Cross multiply
    43,854.60x = 65,749.50 × 36,428.52
  4. Step 4: Simplify right side
    43,854.60x = 2,395,156,975.74
  5. Step 5: Solve for x
    x = 2,395,156,975.74/43,854.60
  6. Step 6: Final answer
    x = 54,615.87

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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.