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Finding the Fourth Proportional to 66,092.75, 91,166.49 and 39,216.23

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Solution

The fourth proportional to 66,092.75, 91,166.49 and 39,216.23 is: 54,093.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,092.75 : 91,166.49 = 39,216.23 : x
  2. Step 2: Convert to fraction form
    66,092.75/91,166.49 = 39,216.23/x
  3. Step 3: Cross multiply
    66,092.75x = 91,166.49 × 39,216.23
  4. Step 4: Simplify right side
    66,092.75x = 3,575,206,040.13
  5. Step 5: Solve for x
    x = 3,575,206,040.13/66,092.75
  6. Step 6: Final answer
    x = 54,093.77

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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.