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Finding the Fourth Proportional to 41,222.40, 61,862.40 and 17,865.60

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Solution

The fourth proportional to 41,222.40, 61,862.40 and 17,865.60 is: 26,810.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,222.40 : 61,862.40 = 17,865.60 : x
  2. Step 2: Convert to fraction form
    41,222.40/61,862.40 = 17,865.60/x
  3. Step 3: Cross multiply
    41,222.40x = 61,862.40 × 17,865.60
  4. Step 4: Simplify right side
    41,222.40x = 1,105,208,893.44
  5. Step 5: Solve for x
    x = 1,105,208,893.44/41,222.40
  6. Step 6: Final answer
    x = 26,810.88

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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.