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Finding the Fourth Proportional to 61,525.62, 84,905.40 and 33,231.30

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Solution

The fourth proportional to 61,525.62, 84,905.40 and 33,231.30 is: 45,859.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,525.62 : 84,905.40 = 33,231.30 : x
  2. Step 2: Convert to fraction form
    61,525.62/84,905.40 = 33,231.30/x
  3. Step 3: Cross multiply
    61,525.62x = 84,905.40 × 33,231.30
  4. Step 4: Simplify right side
    61,525.62x = 2,821,516,819.02
  5. Step 5: Solve for x
    x = 2,821,516,819.02/61,525.62
  6. Step 6: Final answer
    x = 45,859.22

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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.