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Finding the Fourth Proportional to 64,140.45, 96,201.62 and 22,019.79

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Solution

The fourth proportional to 64,140.45, 96,201.62 and 22,019.79 is: 33,026.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,140.45 : 96,201.62 = 22,019.79 : x
  2. Step 2: Convert to fraction form
    64,140.45/96,201.62 = 22,019.79/x
  3. Step 3: Cross multiply
    64,140.45x = 96,201.62 × 22,019.79
  4. Step 4: Simplify right side
    64,140.45x = 2,118,339,359.96
  5. Step 5: Solve for x
    x = 2,118,339,359.96/64,140.45
  6. Step 6: Final answer
    x = 33,026.57

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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.