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Finding the Fourth Proportional to 61,809.77, 85,299.53 and 34,956.65

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Solution

The fourth proportional to 61,809.77, 85,299.53 and 34,956.65 is: 48,241.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,809.77 : 85,299.53 = 34,956.65 : x
  2. Step 2: Convert to fraction form
    61,809.77/85,299.53 = 34,956.65/x
  3. Step 3: Cross multiply
    61,809.77x = 85,299.53 × 34,956.65
  4. Step 4: Simplify right side
    61,809.77x = 2,981,785,214.09
  5. Step 5: Solve for x
    x = 2,981,785,214.09/61,809.77
  6. Step 6: Final answer
    x = 48,241.33

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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.