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Finding the Fourth Proportional to 64,940.60, 97,411.86 and 18,190.52

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Solution

The fourth proportional to 64,940.60, 97,411.86 and 18,190.52 is: 27,286.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,940.60 : 97,411.86 = 18,190.52 : x
  2. Step 2: Convert to fraction form
    64,940.60/97,411.86 = 18,190.52/x
  3. Step 3: Cross multiply
    64,940.60x = 97,411.86 × 18,190.52
  4. Step 4: Simplify right side
    64,940.60x = 1,771,972,387.57
  5. Step 5: Solve for x
    x = 1,771,972,387.57/64,940.60
  6. Step 6: Final answer
    x = 27,286.05

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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.