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Finding the Fourth Proportional to 64,455.45, 96,687.78 and 26,977.80

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Solution

The fourth proportional to 64,455.45, 96,687.78 and 26,977.80 is: 40,468.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,455.45 : 96,687.78 = 26,977.80 : x
  2. Step 2: Convert to fraction form
    64,455.45/96,687.78 = 26,977.80/x
  3. Step 3: Cross multiply
    64,455.45x = 96,687.78 × 26,977.80
  4. Step 4: Simplify right side
    64,455.45x = 2,608,423,591.28
  5. Step 5: Solve for x
    x = 2,608,423,591.28/64,455.45
  6. Step 6: Final answer
    x = 40,468.63

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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.