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Finding the Fourth Proportional to 38,448.60, 57,699 and 13,488.44

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Solution

The fourth proportional to 38,448.60, 57,699 and 13,488.44 is: 20,241.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,448.60 : 57,699 = 13,488.44 : x
  2. Step 2: Convert to fraction form
    38,448.60/57,699 = 13,488.44/x
  3. Step 3: Cross multiply
    38,448.60x = 57,699 × 13,488.44
  4. Step 4: Simplify right side
    38,448.60x = 778,269,499.56
  5. Step 5: Solve for x
    x = 778,269,499.56/38,448.60
  6. Step 6: Final answer
    x = 20,241.82

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.