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Finding the Fourth Proportional to 64,927.72, 97,390.56 and 33,319.54

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Solution

The fourth proportional to 64,927.72, 97,390.56 and 33,319.54 is: 49,978.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,927.72 : 97,390.56 = 33,319.54 : x
  2. Step 2: Convert to fraction form
    64,927.72/97,390.56 = 33,319.54/x
  3. Step 3: Cross multiply
    64,927.72x = 97,390.56 × 33,319.54
  4. Step 4: Simplify right side
    64,927.72x = 3,245,008,659.54
  5. Step 5: Solve for x
    x = 3,245,008,659.54/64,927.72
  6. Step 6: Final answer
    x = 49,978.79

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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.