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Finding the Fourth Proportional to 61,305.96, 91,956.39 and 21,334.10

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Solution

The fourth proportional to 61,305.96, 91,956.39 and 21,334.10 is: 32,000.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,305.96 : 91,956.39 = 21,334.10 : x
  2. Step 2: Convert to fraction form
    61,305.96/91,956.39 = 21,334.10/x
  3. Step 3: Cross multiply
    61,305.96x = 91,956.39 × 21,334.10
  4. Step 4: Simplify right side
    61,305.96x = 1,961,806,819.90
  5. Step 5: Solve for x
    x = 1,961,806,819.90/61,305.96
  6. Step 6: Final answer
    x = 32,000.26

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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.