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Finding the Fourth Proportional to 57,778.80, 86,676.30 and 22,710.30

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Solution

The fourth proportional to 57,778.80, 86,676.30 and 22,710.30 is: 34,068.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,778.80 : 86,676.30 = 22,710.30 : x
  2. Step 2: Convert to fraction form
    57,778.80/86,676.30 = 22,710.30/x
  3. Step 3: Cross multiply
    57,778.80x = 86,676.30 × 22,710.30
  4. Step 4: Simplify right side
    57,778.80x = 1,968,444,775.89
  5. Step 5: Solve for x
    x = 1,968,444,775.89/57,778.80
  6. Step 6: Final answer
    x = 34,068.63

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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.