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Finding the Fourth Proportional to 64,400.54, 96,628.62 and 34,839.19

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Solution

The fourth proportional to 64,400.54, 96,628.62 and 34,839.19 is: 52,273.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,400.54 : 96,628.62 = 34,839.19 : x
  2. Step 2: Convert to fraction form
    64,400.54/96,628.62 = 34,839.19/x
  3. Step 3: Cross multiply
    64,400.54x = 96,628.62 × 34,839.19
  4. Step 4: Simplify right side
    64,400.54x = 3,366,462,851.62
  5. Step 5: Solve for x
    x = 3,366,462,851.62/64,400.54
  6. Step 6: Final answer
    x = 52,273.83

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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.