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Finding the Fourth Proportional to 66,769.68, 92,138.76 and 36,549.48

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Solution

The fourth proportional to 66,769.68, 92,138.76 and 36,549.48 is: 50,436.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,769.68 : 92,138.76 = 36,549.48 : x
  2. Step 2: Convert to fraction form
    66,769.68/92,138.76 = 36,549.48/x
  3. Step 3: Cross multiply
    66,769.68x = 92,138.76 × 36,549.48
  4. Step 4: Simplify right side
    66,769.68x = 3,367,623,765.84
  5. Step 5: Solve for x
    x = 3,367,623,765.84/66,769.68
  6. Step 6: Final answer
    x = 50,436.42

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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.