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Finding the Fourth Proportional to 66,151.90, 91,289.26 and 35,936.98

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Solution

The fourth proportional to 66,151.90, 91,289.26 and 35,936.98 is: 49,592.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,151.90 : 91,289.26 = 35,936.98 : x
  2. Step 2: Convert to fraction form
    66,151.90/91,289.26 = 35,936.98/x
  3. Step 3: Cross multiply
    66,151.90x = 91,289.26 × 35,936.98
  4. Step 4: Simplify right side
    66,151.90x = 3,280,660,220.99
  5. Step 5: Solve for x
    x = 3,280,660,220.99/66,151.90
  6. Step 6: Final answer
    x = 49,592.83

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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.