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Finding the Fourth Proportional to 62,409.63, 93,614.44 and 20,856.63

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Solution

The fourth proportional to 62,409.63, 93,614.44 and 20,856.63 is: 31,284.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,409.63 : 93,614.44 = 20,856.63 : x
  2. Step 2: Convert to fraction form
    62,409.63/93,614.44 = 20,856.63/x
  3. Step 3: Cross multiply
    62,409.63x = 93,614.44 × 20,856.63
  4. Step 4: Simplify right side
    62,409.63x = 1,952,481,737.74
  5. Step 5: Solve for x
    x = 1,952,481,737.74/62,409.63
  6. Step 6: Final answer
    x = 31,284.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.