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Finding the Fourth Proportional to 62,928.61, 86,842.11 and 34,634.95

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Solution

The fourth proportional to 62,928.61, 86,842.11 and 34,634.95 is: 47,796.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,928.61 : 86,842.11 = 34,634.95 : x
  2. Step 2: Convert to fraction form
    62,928.61/86,842.11 = 34,634.95/x
  3. Step 3: Cross multiply
    62,928.61x = 86,842.11 × 34,634.95
  4. Step 4: Simplify right side
    62,928.61x = 3,007,772,137.74
  5. Step 5: Solve for x
    x = 3,007,772,137.74/62,928.61
  6. Step 6: Final answer
    x = 47,796.58

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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.