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Finding the Fourth Proportional to 50,437, 69,605.22 and 28,081

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Solution

The fourth proportional to 50,437, 69,605.22 and 28,081 is: 38,752.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,437 : 69,605.22 = 28,081 : x
  2. Step 2: Convert to fraction form
    50,437/69,605.22 = 28,081/x
  3. Step 3: Cross multiply
    50,437x = 69,605.22 × 28,081
  4. Step 4: Simplify right side
    50,437x = 1,954,584,182.82
  5. Step 5: Solve for x
    x = 1,954,584,182.82/50,437
  6. Step 6: Final answer
    x = 38,752.98

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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.