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Finding the Fourth Proportional to 62,986.59, 86,921.49 and 34,692.28

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Solution

The fourth proportional to 62,986.59, 86,921.49 and 34,692.28 is: 47,875.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,986.59 : 86,921.49 = 34,692.28 : x
  2. Step 2: Convert to fraction form
    62,986.59/86,921.49 = 34,692.28/x
  3. Step 3: Cross multiply
    62,986.59x = 86,921.49 × 34,692.28
  4. Step 4: Simplify right side
    62,986.59x = 3,015,504,484.32
  5. Step 5: Solve for x
    x = 3,015,504,484.32/62,986.59
  6. Step 6: Final answer
    x = 47,875.34

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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.