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Finding the Fourth Proportional to 66,174.25, 91,320.48 and 36,366.25

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Solution

The fourth proportional to 66,174.25, 91,320.48 and 36,366.25 is: 50,185.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,174.25 : 91,320.48 = 36,366.25 : x
  2. Step 2: Convert to fraction form
    66,174.25/91,320.48 = 36,366.25/x
  3. Step 3: Cross multiply
    66,174.25x = 91,320.48 × 36,366.25
  4. Step 4: Simplify right side
    66,174.25x = 3,320,983,405.80
  5. Step 5: Solve for x
    x = 3,320,983,405.80/66,174.25
  6. Step 6: Final answer
    x = 50,185.43

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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.