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Finding the Fourth Proportional to 40,796.60, 61,078.10 and 25,108.60

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Solution

The fourth proportional to 40,796.60, 61,078.10 and 25,108.60 is: 37,591.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,796.60 : 61,078.10 = 25,108.60 : x
  2. Step 2: Convert to fraction form
    40,796.60/61,078.10 = 25,108.60/x
  3. Step 3: Cross multiply
    40,796.60x = 61,078.10 × 25,108.60
  4. Step 4: Simplify right side
    40,796.60x = 1,533,585,581.66
  5. Step 5: Solve for x
    x = 1,533,585,581.66/40,796.60
  6. Step 6: Final answer
    x = 37,591.01

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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.