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Finding the Fourth Proportional to 66,998.34, 92,458.76 and 36,786.38

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Solution

The fourth proportional to 66,998.34, 92,458.76 and 36,786.38 is: 50,765.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,998.34 : 92,458.76 = 36,786.38 : x
  2. Step 2: Convert to fraction form
    66,998.34/92,458.76 = 36,786.38/x
  3. Step 3: Cross multiply
    66,998.34x = 92,458.76 × 36,786.38
  4. Step 4: Simplify right side
    66,998.34x = 3,401,222,433.46
  5. Step 5: Solve for x
    x = 3,401,222,433.46/66,998.34
  6. Step 6: Final answer
    x = 50,765.77

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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.