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Finding the Fourth Proportional to 57,985.80, 86,986.80 and 24,705.60

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Solution

The fourth proportional to 57,985.80, 86,986.80 and 24,705.60 is: 37,061.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,985.80 : 86,986.80 = 24,705.60 : x
  2. Step 2: Convert to fraction form
    57,985.80/86,986.80 = 24,705.60/x
  3. Step 3: Cross multiply
    57,985.80x = 86,986.80 × 24,705.60
  4. Step 4: Simplify right side
    57,985.80x = 2,149,061,086.08
  5. Step 5: Solve for x
    x = 2,149,061,086.08/57,985.80
  6. Step 6: Final answer
    x = 37,061.85

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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.