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Finding the Fourth Proportional to 61,940.46, 85,475.88 and 35,085.46

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Solution

The fourth proportional to 61,940.46, 85,475.88 and 35,085.46 is: 48,416.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,940.46 : 85,475.88 = 35,085.46 : x
  2. Step 2: Convert to fraction form
    61,940.46/85,475.88 = 35,085.46/x
  3. Step 3: Cross multiply
    61,940.46x = 85,475.88 × 35,085.46
  4. Step 4: Simplify right side
    61,940.46x = 2,998,960,568.70
  5. Step 5: Solve for x
    x = 2,998,960,568.70/61,940.46
  6. Step 6: Final answer
    x = 48,416.83

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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.