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Finding the Fourth Proportional to 51,396.66, 77,164.92 and 28,923.21

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Solution

The fourth proportional to 51,396.66, 77,164.92 and 28,923.21 is: 43,424.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,396.66 : 77,164.92 = 28,923.21 : x
  2. Step 2: Convert to fraction form
    51,396.66/77,164.92 = 28,923.21/x
  3. Step 3: Cross multiply
    51,396.66x = 77,164.92 × 28,923.21
  4. Step 4: Simplify right side
    51,396.66x = 2,231,857,185.79
  5. Step 5: Solve for x
    x = 2,231,857,185.79/51,396.66
  6. Step 6: Final answer
    x = 43,424.17

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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.