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Finding the Fourth Proportional to 61,516.77, 84,890.00 and 34,660.87

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Solution

The fourth proportional to 61,516.77, 84,890.00 and 34,660.87 is: 47,830.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,516.77 : 84,890.00 = 34,660.87 : x
  2. Step 2: Convert to fraction form
    61,516.77/84,890.00 = 34,660.87/x
  3. Step 3: Cross multiply
    61,516.77x = 84,890.00 × 34,660.87
  4. Step 4: Simplify right side
    61,516.77x = 2,942,361,128.73
  5. Step 5: Solve for x
    x = 2,942,361,128.73/61,516.77
  6. Step 6: Final answer
    x = 47,830.23

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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.