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Finding the Fourth Proportional to 61,967.76, 85,515.36 and 33,673.92

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Solution

The fourth proportional to 61,967.76, 85,515.36 and 33,673.92 is: 46,469.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,967.76 : 85,515.36 = 33,673.92 : x
  2. Step 2: Convert to fraction form
    61,967.76/85,515.36 = 33,673.92/x
  3. Step 3: Cross multiply
    61,967.76x = 85,515.36 × 33,673.92
  4. Step 4: Simplify right side
    61,967.76x = 2,879,637,391.41
  5. Step 5: Solve for x
    x = 2,879,637,391.41/61,967.76
  6. Step 6: Final answer
    x = 46,469.93

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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.