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Finding the Fourth Proportional to 62,981.76, 86,914.83 and 34,687.44

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Solution

The fourth proportional to 62,981.76, 86,914.83 and 34,687.44 is: 47,868.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,981.76 : 86,914.83 = 34,687.44 : x
  2. Step 2: Convert to fraction form
    62,981.76/86,914.83 = 34,687.44/x
  3. Step 3: Cross multiply
    62,981.76x = 86,914.83 × 34,687.44
  4. Step 4: Simplify right side
    62,981.76x = 3,014,852,950.74
  5. Step 5: Solve for x
    x = 3,014,852,950.74/62,981.76
  6. Step 6: Final answer
    x = 47,868.67

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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.