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Finding the Fourth Proportional to 66,622.75, 91,941.86 and 36,410.10

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Solution

The fourth proportional to 66,622.75, 91,941.86 and 36,410.10 is: 50,247.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,622.75 : 91,941.86 = 36,410.10 : x
  2. Step 2: Convert to fraction form
    66,622.75/91,941.86 = 36,410.10/x
  3. Step 3: Cross multiply
    66,622.75x = 91,941.86 × 36,410.10
  4. Step 4: Simplify right side
    66,622.75x = 3,347,612,316.79
  5. Step 5: Solve for x
    x = 3,347,612,316.79/66,622.75
  6. Step 6: Final answer
    x = 50,247.29

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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.