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Finding the Fourth Proportional to 63,749.99, 87,978.71 and 36,901.83

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Solution

The fourth proportional to 63,749.99, 87,978.71 and 36,901.83 is: 50,926.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,749.99 : 87,978.71 = 36,901.83 : x
  2. Step 2: Convert to fraction form
    63,749.99/87,978.71 = 36,901.83/x
  3. Step 3: Cross multiply
    63,749.99x = 87,978.71 × 36,901.83
  4. Step 4: Simplify right side
    63,749.99x = 3,246,575,119.76
  5. Step 5: Solve for x
    x = 3,246,575,119.76/63,749.99
  6. Step 6: Final answer
    x = 50,926.68

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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.