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Finding the Fourth Proportional to 66,576.30, 99,850.05 and 29,136.30

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Solution

The fourth proportional to 66,576.30, 99,850.05 and 29,136.30 is: 43,698.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,576.30 : 99,850.05 = 29,136.30 : x
  2. Step 2: Convert to fraction form
    66,576.30/99,850.05 = 29,136.30/x
  3. Step 3: Cross multiply
    66,576.30x = 99,850.05 × 29,136.30
  4. Step 4: Simplify right side
    66,576.30x = 2,909,261,011.82
  5. Step 5: Solve for x
    x = 2,909,261,011.82/66,576.30
  6. Step 6: Final answer
    x = 43,698.15

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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.