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Finding the Fourth Proportional to 66,770.76, 92,143.67 and 36,558.03

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Solution

The fourth proportional to 66,770.76, 92,143.67 and 36,558.03 is: 50,450.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,770.76 : 92,143.67 = 36,558.03 : x
  2. Step 2: Convert to fraction form
    66,770.76/92,143.67 = 36,558.03/x
  3. Step 3: Cross multiply
    66,770.76x = 92,143.67 × 36,558.03
  4. Step 4: Simplify right side
    66,770.76x = 3,368,590,869.38
  5. Step 5: Solve for x
    x = 3,368,590,869.38/66,770.76
  6. Step 6: Final answer
    x = 50,450.09

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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.