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Finding the Fourth Proportional to 62,942.32, 86,859.48 and 34,647.28

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Solution

The fourth proportional to 62,942.32, 86,859.48 and 34,647.28 is: 47,812.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,942.32 : 86,859.48 = 34,647.28 : x
  2. Step 2: Convert to fraction form
    62,942.32/86,859.48 = 34,647.28/x
  3. Step 3: Cross multiply
    62,942.32x = 86,859.48 × 34,647.28
  4. Step 4: Simplify right side
    62,942.32x = 3,009,444,724.21
  5. Step 5: Solve for x
    x = 3,009,444,724.21/62,942.32
  6. Step 6: Final answer
    x = 47,812.74

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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.