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Finding the Fourth Proportional to 66,197.69, 99,296.53 and 19,450.56

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Solution

The fourth proportional to 66,197.69, 99,296.53 and 19,450.56 is: 29,175.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,197.69 : 99,296.53 = 19,450.56 : x
  2. Step 2: Convert to fraction form
    66,197.69/99,296.53 = 19,450.56/x
  3. Step 3: Cross multiply
    66,197.69x = 99,296.53 × 19,450.56
  4. Step 4: Simplify right side
    66,197.69x = 1,931,373,114.56
  5. Step 5: Solve for x
    x = 1,931,373,114.56/66,197.69
  6. Step 6: Final answer
    x = 29,175.84

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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.