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Finding the Fourth Proportional to 66,685.50, 92,022.20 and 36,465.22

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Solution

The fourth proportional to 66,685.50, 92,022.20 and 36,465.22 is: 50,319.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,685.50 : 92,022.20 = 36,465.22 : x
  2. Step 2: Convert to fraction form
    66,685.50/92,022.20 = 36,465.22/x
  3. Step 3: Cross multiply
    66,685.50x = 92,022.20 × 36,465.22
  4. Step 4: Simplify right side
    66,685.50x = 3,355,609,767.88
  5. Step 5: Solve for x
    x = 3,355,609,767.88/66,685.50
  6. Step 6: Final answer
    x = 50,319.93

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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.