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Finding the Fourth Proportional to 67,912, 101,764 and 36,326.56

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Solution

The fourth proportional to 67,912, 101,764 and 36,326.56 is: 54,434.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,912 : 101,764 = 36,326.56 : x
  2. Step 2: Convert to fraction form
    67,912/101,764 = 36,326.56/x
  3. Step 3: Cross multiply
    67,912x = 101,764 × 36,326.56
  4. Step 4: Simplify right side
    67,912x = 3,696,736,051.84
  5. Step 5: Solve for x
    x = 3,696,736,051.84/67,912
  6. Step 6: Final answer
    x = 54,434.21

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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.