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Finding the Fourth Proportional to 66,821.41, 92,209.83 and 36,601.03

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Solution

The fourth proportional to 66,821.41, 92,209.83 and 36,601.03 is: 50,507.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,821.41 : 92,209.83 = 36,601.03 : x
  2. Step 2: Convert to fraction form
    66,821.41/92,209.83 = 36,601.03/x
  3. Step 3: Cross multiply
    66,821.41x = 92,209.83 × 36,601.03
  4. Step 4: Simplify right side
    66,821.41x = 3,374,974,754.12
  5. Step 5: Solve for x
    x = 3,374,974,754.12/66,821.41
  6. Step 6: Final answer
    x = 50,507.39

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1.5x scale

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.