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Finding the Fourth Proportional to 66,860.66, 92,268.72 and 36,645.74

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Solution

The fourth proportional to 66,860.66, 92,268.72 and 36,645.74 is: 50,571.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,860.66 : 92,268.72 = 36,645.74 : x
  2. Step 2: Convert to fraction form
    66,860.66/92,268.72 = 36,645.74/x
  3. Step 3: Cross multiply
    66,860.66x = 92,268.72 × 36,645.74
  4. Step 4: Simplify right side
    66,860.66x = 3,381,255,523.25
  5. Step 5: Solve for x
    x = 3,381,255,523.25/66,860.66
  6. Step 6: Final answer
    x = 50,571.67

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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.