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Finding the Fourth Proportional to 66,551.40, 91,745.52 and 41,040.63

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Solution

The fourth proportional to 66,551.40, 91,745.52 and 41,040.63 is: 56,577.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,551.40 : 91,745.52 = 41,040.63 : x
  2. Step 2: Convert to fraction form
    66,551.40/91,745.52 = 41,040.63/x
  3. Step 3: Cross multiply
    66,551.40x = 91,745.52 × 41,040.63
  4. Step 4: Simplify right side
    66,551.40x = 3,765,293,940.48
  5. Step 5: Solve for x
    x = 3,765,293,940.48/66,551.40
  6. Step 6: Final answer
    x = 56,577.23

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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.