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Finding the Fourth Proportional to 61,687.65, 92,565.70 and 30,097.98

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Solution

The fourth proportional to 61,687.65, 92,565.70 and 30,097.98 is: 45,163.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,687.65 : 92,565.70 = 30,097.98 : x
  2. Step 2: Convert to fraction form
    61,687.65/92,565.70 = 30,097.98/x
  3. Step 3: Cross multiply
    61,687.65x = 92,565.70 × 30,097.98
  4. Step 4: Simplify right side
    61,687.65x = 2,786,040,512.04
  5. Step 5: Solve for x
    x = 2,786,040,512.04/61,687.65
  6. Step 6: Final answer
    x = 45,163.66

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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.