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Finding the Fourth Proportional to 62,820.88, 86,692.86 and 34,526.56

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Solution

The fourth proportional to 62,820.88, 86,692.86 and 34,526.56 is: 47,646.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,820.88 : 86,692.86 = 34,526.56 : x
  2. Step 2: Convert to fraction form
    62,820.88/86,692.86 = 34,526.56/x
  3. Step 3: Cross multiply
    62,820.88x = 86,692.86 × 34,526.56
  4. Step 4: Simplify right side
    62,820.88x = 2,993,206,232.36
  5. Step 5: Solve for x
    x = 2,993,206,232.36/62,820.88
  6. Step 6: Final answer
    x = 47,646.68

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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.