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Finding the Fourth Proportional to 66,283.75, 91,471.59 and 36,475.75

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Solution

The fourth proportional to 66,283.75, 91,471.59 and 36,475.75 is: 50,336.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,283.75 : 91,471.59 = 36,475.75 : x
  2. Step 2: Convert to fraction form
    66,283.75/91,471.59 = 36,475.75/x
  3. Step 3: Cross multiply
    66,283.75x = 91,471.59 × 36,475.75
  4. Step 4: Simplify right side
    66,283.75x = 3,336,494,848.94
  5. Step 5: Solve for x
    x = 3,336,494,848.94/66,283.75
  6. Step 6: Final answer
    x = 50,336.54

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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.