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Finding the Fourth Proportional to 66,018.44, 91,103.74 and 37,724.13

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Solution

The fourth proportional to 66,018.44, 91,103.74 and 37,724.13 is: 52,058.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,018.44 : 91,103.74 = 37,724.13 : x
  2. Step 2: Convert to fraction form
    66,018.44/91,103.74 = 37,724.13/x
  3. Step 3: Cross multiply
    66,018.44x = 91,103.74 × 37,724.13
  4. Step 4: Simplify right side
    66,018.44x = 3,436,809,236.94
  5. Step 5: Solve for x
    x = 3,436,809,236.94/66,018.44
  6. Step 6: Final answer
    x = 52,058.32

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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.