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Finding the Fourth Proportional to 66,569, 99,930.30 and 33,806.12

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Solution

The fourth proportional to 66,569, 99,930.30 and 33,806.12 is: 50,748.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,569 : 99,930.30 = 33,806.12 : x
  2. Step 2: Convert to fraction form
    66,569/99,930.30 = 33,806.12/x
  3. Step 3: Cross multiply
    66,569x = 99,930.30 × 33,806.12
  4. Step 4: Simplify right side
    66,569x = 3,378,255,713.44
  5. Step 5: Solve for x
    x = 3,378,255,713.44/66,569
  6. Step 6: Final answer
    x = 50,748.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.