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Finding the Fourth Proportional to 40,910.60, 61,322.70 and 23,342.60

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Solution

The fourth proportional to 40,910.60, 61,322.70 and 23,342.60 is: 34,989.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,910.60 : 61,322.70 = 23,342.60 : x
  2. Step 2: Convert to fraction form
    40,910.60/61,322.70 = 23,342.60/x
  3. Step 3: Cross multiply
    40,910.60x = 61,322.70 × 23,342.60
  4. Step 4: Simplify right side
    40,910.60x = 1,431,431,257.02
  5. Step 5: Solve for x
    x = 1,431,431,257.02/40,910.60
  6. Step 6: Final answer
    x = 34,989.25

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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.