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Finding the Fourth Proportional to 62,892.60, 86,833.26 and 39,054.84

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Solution

The fourth proportional to 62,892.60, 86,833.26 and 39,054.84 is: 53,921.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,892.60 : 86,833.26 = 39,054.84 : x
  2. Step 2: Convert to fraction form
    62,892.60/86,833.26 = 39,054.84/x
  3. Step 3: Cross multiply
    62,892.60x = 86,833.26 × 39,054.84
  4. Step 4: Simplify right side
    62,892.60x = 3,391,259,075.98
  5. Step 5: Solve for x
    x = 3,391,259,075.98/62,892.60
  6. Step 6: Final answer
    x = 53,921.43

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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.