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Finding the Fourth Proportional to 41,245.60, 61,871.64 and 11,662.96

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Solution

The fourth proportional to 41,245.60, 61,871.64 and 11,662.96 is: 17,495.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,245.60 : 61,871.64 = 11,662.96 : x
  2. Step 2: Convert to fraction form
    41,245.60/61,871.64 = 11,662.96/x
  3. Step 3: Cross multiply
    41,245.60x = 61,871.64 × 11,662.96
  4. Step 4: Simplify right side
    41,245.60x = 721,606,462.45
  5. Step 5: Solve for x
    x = 721,606,462.45/41,245.60
  6. Step 6: Final answer
    x = 17,495.36

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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.