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Finding the Fourth Proportional to 61,516.65, 84,889.83 and 34,660.74

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Solution

The fourth proportional to 61,516.65, 84,889.83 and 34,660.74 is: 47,830.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,516.65 : 84,889.83 = 34,660.74 : x
  2. Step 2: Convert to fraction form
    61,516.65/84,889.83 = 34,660.74/x
  3. Step 3: Cross multiply
    61,516.65x = 84,889.83 × 34,660.74
  4. Step 4: Simplify right side
    61,516.65x = 2,942,344,326.27
  5. Step 5: Solve for x
    x = 2,942,344,326.27/61,516.65
  6. Step 6: Final answer
    x = 47,830.05

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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.