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Finding the Fourth Proportional to 66,230.56, 91,396.38 and 37,555.48

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Solution

The fourth proportional to 66,230.56, 91,396.38 and 37,555.48 is: 51,825.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,230.56 : 91,396.38 = 37,555.48 : x
  2. Step 2: Convert to fraction form
    66,230.56/91,396.38 = 37,555.48/x
  3. Step 3: Cross multiply
    66,230.56x = 91,396.38 × 37,555.48
  4. Step 4: Simplify right side
    66,230.56x = 3,432,434,921.16
  5. Step 5: Solve for x
    x = 3,432,434,921.16/66,230.56
  6. Step 6: Final answer
    x = 51,825.55

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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.