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Finding the Fourth Proportional to 61,990.44, 85,516.74 and 36,822.12

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Solution

The fourth proportional to 61,990.44, 85,516.74 and 36,822.12 is: 50,796.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,990.44 : 85,516.74 = 36,822.12 : x
  2. Step 2: Convert to fraction form
    61,990.44/85,516.74 = 36,822.12/x
  3. Step 3: Cross multiply
    61,990.44x = 85,516.74 × 36,822.12
  4. Step 4: Simplify right side
    61,990.44x = 3,148,907,662.29
  5. Step 5: Solve for x
    x = 3,148,907,662.29/61,990.44
  6. Step 6: Final answer
    x = 50,796.67

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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.