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Finding the Fourth Proportional to 61,963.62, 85,509.64 and 33,669.31

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Solution

The fourth proportional to 61,963.62, 85,509.64 and 33,669.31 is: 46,463.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,963.62 : 85,509.64 = 33,669.31 : x
  2. Step 2: Convert to fraction form
    61,963.62/85,509.64 = 33,669.31/x
  3. Step 3: Cross multiply
    61,963.62x = 85,509.64 × 33,669.31
  4. Step 4: Simplify right side
    61,963.62x = 2,879,050,408.80
  5. Step 5: Solve for x
    x = 2,879,050,408.80/61,963.62
  6. Step 6: Final answer
    x = 46,463.56

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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.