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Finding the Fourth Proportional to 66,494.84, 91,763.03 and 36,280.22

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Solution

The fourth proportional to 66,494.84, 91,763.03 and 36,280.22 is: 50,066.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,494.84 : 91,763.03 = 36,280.22 : x
  2. Step 2: Convert to fraction form
    66,494.84/91,763.03 = 36,280.22/x
  3. Step 3: Cross multiply
    66,494.84x = 91,763.03 × 36,280.22
  4. Step 4: Simplify right side
    66,494.84x = 3,329,182,916.27
  5. Step 5: Solve for x
    x = 3,329,182,916.27/66,494.84
  6. Step 6: Final answer
    x = 50,066.79

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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.