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Finding the Fourth Proportional to 62,768.64, 86,620.64 and 34,476.14

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Solution

The fourth proportional to 62,768.64, 86,620.64 and 34,476.14 is: 47,577.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,768.64 : 86,620.64 = 34,476.14 : x
  2. Step 2: Convert to fraction form
    62,768.64/86,620.64 = 34,476.14/x
  3. Step 3: Cross multiply
    62,768.64x = 86,620.64 × 34,476.14
  4. Step 4: Simplify right side
    62,768.64x = 2,986,345,311.53
  5. Step 5: Solve for x
    x = 2,986,345,311.53/62,768.64
  6. Step 6: Final answer
    x = 47,577.03

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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.