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Finding the Fourth Proportional to 62,810.72, 86,678.79 and 34,516.41

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Solution

The fourth proportional to 62,810.72, 86,678.79 and 34,516.41 is: 47,632.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,810.72 : 86,678.79 = 34,516.41 : x
  2. Step 2: Convert to fraction form
    62,810.72/86,678.79 = 34,516.41/x
  3. Step 3: Cross multiply
    62,810.72x = 86,678.79 × 34,516.41
  4. Step 4: Simplify right side
    62,810.72x = 2,991,840,393.62
  5. Step 5: Solve for x
    x = 2,991,840,393.62/62,810.72
  6. Step 6: Final answer
    x = 47,632.64

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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.