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Finding the Fourth Proportional to 66,099.34, 91,216.73 and 35,884.42

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Solution

The fourth proportional to 66,099.34, 91,216.73 and 35,884.42 is: 49,520.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,099.34 : 91,216.73 = 35,884.42 : x
  2. Step 2: Convert to fraction form
    66,099.34/91,216.73 = 35,884.42/x
  3. Step 3: Cross multiply
    66,099.34x = 91,216.73 × 35,884.42
  4. Step 4: Simplify right side
    66,099.34x = 3,273,259,312.02
  5. Step 5: Solve for x
    x = 3,273,259,312.02/66,099.34
  6. Step 6: Final answer
    x = 49,520.30

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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.