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Finding the Fourth Proportional to 64,047.77, 96,004.66 and 21,913.69

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Solution

The fourth proportional to 64,047.77, 96,004.66 and 21,913.69 is: 32,847.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,047.77 : 96,004.66 = 21,913.69 : x
  2. Step 2: Convert to fraction form
    64,047.77/96,004.66 = 21,913.69/x
  3. Step 3: Cross multiply
    64,047.77x = 96,004.66 × 21,913.69
  4. Step 4: Simplify right side
    64,047.77x = 2,103,815,768.20
  5. Step 5: Solve for x
    x = 2,103,815,768.20/64,047.77
  6. Step 6: Final answer
    x = 32,847.61

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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.