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Finding the Fourth Proportional to 61,321.65, 84,604.86 and 35,809.62

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Solution

The fourth proportional to 61,321.65, 84,604.86 and 35,809.62 is: 49,406.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,321.65 : 84,604.86 = 35,809.62 : x
  2. Step 2: Convert to fraction form
    61,321.65/84,604.86 = 35,809.62/x
  3. Step 3: Cross multiply
    61,321.65x = 84,604.86 × 35,809.62
  4. Step 4: Simplify right side
    61,321.65x = 3,029,667,886.75
  5. Step 5: Solve for x
    x = 3,029,667,886.75/61,321.65
  6. Step 6: Final answer
    x = 49,406.17

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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.