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Finding the Fourth Proportional to 69,844.64, 96,387.64 and 38,015.60

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Solution

The fourth proportional to 69,844.64, 96,387.64 and 38,015.60 is: 52,462.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,844.64 : 96,387.64 = 38,015.60 : x
  2. Step 2: Convert to fraction form
    69,844.64/96,387.64 = 38,015.60/x
  3. Step 3: Cross multiply
    69,844.64x = 96,387.64 × 38,015.60
  4. Step 4: Simplify right side
    69,844.64x = 3,664,233,390.21
  5. Step 5: Solve for x
    x = 3,664,233,390.21/69,844.64
  6. Step 6: Final answer
    x = 52,462.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.