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Finding the Fourth Proportional to 61,692.80, 92,390.08 and 35,317.60

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Solution

The fourth proportional to 61,692.80, 92,390.08 and 35,317.60 is: 52,891.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,692.80 : 92,390.08 = 35,317.60 : x
  2. Step 2: Convert to fraction form
    61,692.80/92,390.08 = 35,317.60/x
  3. Step 3: Cross multiply
    61,692.80x = 92,390.08 × 35,317.60
  4. Step 4: Simplify right side
    61,692.80x = 3,262,995,889.41
  5. Step 5: Solve for x
    x = 3,262,995,889.41/61,692.80
  6. Step 6: Final answer
    x = 52,891.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.