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Finding the Fourth Proportional to 41,130.40, 61,609.20 and 22,640.80

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Solution

The fourth proportional to 41,130.40, 61,609.20 and 22,640.80 is: 33,913.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,130.40 : 61,609.20 = 22,640.80 : x
  2. Step 2: Convert to fraction form
    41,130.40/61,609.20 = 22,640.80/x
  3. Step 3: Cross multiply
    41,130.40x = 61,609.20 × 22,640.80
  4. Step 4: Simplify right side
    41,130.40x = 1,394,881,575.36
  5. Step 5: Solve for x
    x = 1,394,881,575.36/41,130.40
  6. Step 6: Final answer
    x = 33,913.64

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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.