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Finding the Fourth Proportional to 66,881.50, 92,294.46 and 36,665.78

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Solution

The fourth proportional to 66,881.50, 92,294.46 and 36,665.78 is: 50,597.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,881.50 : 92,294.46 = 36,665.78 : x
  2. Step 2: Convert to fraction form
    66,881.50/92,294.46 = 36,665.78/x
  3. Step 3: Cross multiply
    66,881.50x = 92,294.46 × 36,665.78
  4. Step 4: Simplify right side
    66,881.50x = 3,384,048,596.31
  5. Step 5: Solve for x
    x = 3,384,048,596.31/66,881.50
  6. Step 6: Final answer
    x = 50,597.68

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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.