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Finding the Fourth Proportional to 62,768.91, 86,620.80 and 34,088.37

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Solution

The fourth proportional to 62,768.91, 86,620.80 and 34,088.37 is: 47,041.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,768.91 : 86,620.80 = 34,088.37 : x
  2. Step 2: Convert to fraction form
    62,768.91/86,620.80 = 34,088.37/x
  3. Step 3: Cross multiply
    62,768.91x = 86,620.80 × 34,088.37
  4. Step 4: Simplify right side
    62,768.91x = 2,952,761,880.10
  5. Step 5: Solve for x
    x = 2,952,761,880.10/62,768.91
  6. Step 6: Final answer
    x = 47,041.79

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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.