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Finding the Fourth Proportional to 51,671.35, 77,507.03 and 51,282.55

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Solution

The fourth proportional to 51,671.35, 77,507.03 and 51,282.55 is: 76,923.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,671.35 : 77,507.03 = 51,282.55 : x
  2. Step 2: Convert to fraction form
    51,671.35/77,507.03 = 51,282.55/x
  3. Step 3: Cross multiply
    51,671.35x = 77,507.03 × 51,282.55
  4. Step 4: Simplify right side
    51,671.35x = 3,974,757,884.91
  5. Step 5: Solve for x
    x = 3,974,757,884.91/51,671.35
  6. Step 6: Final answer
    x = 76,923.83

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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.