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Finding the Fourth Proportional to 66,933.63, 92,369.64 and 36,720.49

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Solution

The fourth proportional to 66,933.63, 92,369.64 and 36,720.49 is: 50,674.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,933.63 : 92,369.64 = 36,720.49 : x
  2. Step 2: Convert to fraction form
    66,933.63/92,369.64 = 36,720.49/x
  3. Step 3: Cross multiply
    66,933.63x = 92,369.64 × 36,720.49
  4. Step 4: Simplify right side
    66,933.63x = 3,391,858,258.32
  5. Step 5: Solve for x
    x = 3,391,858,258.32/66,933.63
  6. Step 6: Final answer
    x = 50,674.95

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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.