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Finding the Fourth Proportional to 62,928.98, 86,840.34 and 34,249.22

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Solution

The fourth proportional to 62,928.98, 86,840.34 and 34,249.22 is: 47,263.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,928.98 : 86,840.34 = 34,249.22 : x
  2. Step 2: Convert to fraction form
    62,928.98/86,840.34 = 34,249.22/x
  3. Step 3: Cross multiply
    62,928.98x = 86,840.34 × 34,249.22
  4. Step 4: Simplify right side
    62,928.98x = 2,974,213,909.53
  5. Step 5: Solve for x
    x = 2,974,213,909.53/62,928.98
  6. Step 6: Final answer
    x = 47,263.02

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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.