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Finding the Fourth Proportional to 62,420.94, 86,134.26 and 36,928.26

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Solution

The fourth proportional to 62,420.94, 86,134.26 and 36,928.26 is: 50,957.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,420.94 : 86,134.26 = 36,928.26 : x
  2. Step 2: Convert to fraction form
    62,420.94/86,134.26 = 36,928.26/x
  3. Step 3: Cross multiply
    62,420.94x = 86,134.26 × 36,928.26
  4. Step 4: Simplify right side
    62,420.94x = 3,180,788,348.19
  5. Step 5: Solve for x
    x = 3,180,788,348.19/62,420.94
  6. Step 6: Final answer
    x = 50,957.07

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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.