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Finding the Fourth Proportional to 61,676.79, 92,440.69 and 30,039.44

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Solution

The fourth proportional to 61,676.79, 92,440.69 and 30,039.44 is: 45,022.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,676.79 : 92,440.69 = 30,039.44 : x
  2. Step 2: Convert to fraction form
    61,676.79/92,440.69 = 30,039.44/x
  3. Step 3: Cross multiply
    61,676.79x = 92,440.69 × 30,039.44
  4. Step 4: Simplify right side
    61,676.79x = 2,776,866,560.81
  5. Step 5: Solve for x
    x = 2,776,866,560.81/61,676.79
  6. Step 6: Final answer
    x = 45,022.88

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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.