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Finding the Fourth Proportional to 64,836.69, 97,231.64 and 27,399.65

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Solution

The fourth proportional to 64,836.69, 97,231.64 and 27,399.65 is: 41,089.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,836.69 : 97,231.64 = 27,399.65 : x
  2. Step 2: Convert to fraction form
    64,836.69/97,231.64 = 27,399.65/x
  3. Step 3: Cross multiply
    64,836.69x = 97,231.64 × 27,399.65
  4. Step 4: Simplify right side
    64,836.69x = 2,664,113,393.02
  5. Step 5: Solve for x
    x = 2,664,113,393.02/64,836.69
  6. Step 6: Final answer
    x = 41,089.60

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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.