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Finding the Fourth Proportional to 57,855.98, 79,840.20 and 32,705.48

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Solution

The fourth proportional to 57,855.98, 79,840.20 and 32,705.48 is: 45,132.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,855.98 : 79,840.20 = 32,705.48 : x
  2. Step 2: Convert to fraction form
    57,855.98/79,840.20 = 32,705.48/x
  3. Step 3: Cross multiply
    57,855.98x = 79,840.20 × 32,705.48
  4. Step 4: Simplify right side
    57,855.98x = 2,611,212,064.30
  5. Step 5: Solve for x
    x = 2,611,212,064.30/57,855.98
  6. Step 6: Final answer
    x = 45,132.97

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1.5x scale

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.