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Finding the Fourth Proportional to 62,991.76, 86,927.52 and 34,697.20

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Solution

The fourth proportional to 62,991.76, 86,927.52 and 34,697.20 is: 47,881.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,991.76 : 86,927.52 = 34,697.20 : x
  2. Step 2: Convert to fraction form
    62,991.76/86,927.52 = 34,697.20/x
  3. Step 3: Cross multiply
    62,991.76x = 86,927.52 × 34,697.20
  4. Step 4: Simplify right side
    62,991.76x = 3,016,141,546.94
  5. Step 5: Solve for x
    x = 3,016,141,546.94/62,991.76
  6. Step 6: Final answer
    x = 47,881.53

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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.