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Finding the Fourth Proportional to 61,353.46, 84,661.94 and 35,865.80

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Solution

The fourth proportional to 61,353.46, 84,661.94 and 35,865.80 is: 49,491.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,353.46 : 84,661.94 = 35,865.80 : x
  2. Step 2: Convert to fraction form
    61,353.46/84,661.94 = 35,865.80/x
  3. Step 3: Cross multiply
    61,353.46x = 84,661.94 × 35,865.80
  4. Step 4: Simplify right side
    61,353.46x = 3,036,468,207.65
  5. Step 5: Solve for x
    x = 3,036,468,207.65/61,353.46
  6. Step 6: Final answer
    x = 49,491.39

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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.