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Finding the Fourth Proportional to 57,773.52, 86,692.32 and 28,191.60

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Solution

The fourth proportional to 57,773.52, 86,692.32 and 28,191.60 is: 42,303.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,773.52 : 86,692.32 = 28,191.60 : x
  2. Step 2: Convert to fraction form
    57,773.52/86,692.32 = 28,191.60/x
  3. Step 3: Cross multiply
    57,773.52x = 86,692.32 × 28,191.60
  4. Step 4: Simplify right side
    57,773.52x = 2,443,995,208.51
  5. Step 5: Solve for x
    x = 2,443,995,208.51/57,773.52
  6. Step 6: Final answer
    x = 42,303.03

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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.