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Finding the Fourth Proportional to 61,656.56, 85,086.34 and 34,800.20

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Solution

The fourth proportional to 61,656.56, 85,086.34 and 34,800.20 is: 48,024.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,656.56 : 85,086.34 = 34,800.20 : x
  2. Step 2: Convert to fraction form
    61,656.56/85,086.34 = 34,800.20/x
  3. Step 3: Cross multiply
    61,656.56x = 85,086.34 × 34,800.20
  4. Step 4: Simplify right side
    61,656.56x = 2,961,021,136.84
  5. Step 5: Solve for x
    x = 2,961,021,136.84/61,656.56
  6. Step 6: Final answer
    x = 48,024.43

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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.