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Finding the Fourth Proportional to 61,975.98, 85,516.28 and 35,112.94

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Solution

The fourth proportional to 61,975.98, 85,516.28 and 35,112.94 is: 48,449.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,975.98 : 85,516.28 = 35,112.94 : x
  2. Step 2: Convert to fraction form
    61,975.98/85,516.28 = 35,112.94/x
  3. Step 3: Cross multiply
    61,975.98x = 85,516.28 × 35,112.94
  4. Step 4: Simplify right side
    61,975.98x = 3,002,728,008.66
  5. Step 5: Solve for x
    x = 3,002,728,008.66/61,975.98
  6. Step 6: Final answer
    x = 48,449.87

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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.