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Finding the Fourth Proportional to 66,819.78, 92,210.13 and 36,605.70

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Solution

The fourth proportional to 66,819.78, 92,210.13 and 36,605.70 is: 50,515.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,819.78 : 92,210.13 = 36,605.70 : x
  2. Step 2: Convert to fraction form
    66,819.78/92,210.13 = 36,605.70/x
  3. Step 3: Cross multiply
    66,819.78x = 92,210.13 × 36,605.70
  4. Step 4: Simplify right side
    66,819.78x = 3,375,416,355.74
  5. Step 5: Solve for x
    x = 3,375,416,355.74/66,819.78
  6. Step 6: Final answer
    x = 50,515.23

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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.