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Finding the Fourth Proportional to 66,274.35, 91,458.56 and 36,059.64

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Solution

The fourth proportional to 66,274.35, 91,458.56 and 36,059.64 is: 49,762.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,274.35 : 91,458.56 = 36,059.64 : x
  2. Step 2: Convert to fraction form
    66,274.35/91,458.56 = 36,059.64/x
  3. Step 3: Cross multiply
    66,274.35x = 91,458.56 × 36,059.64
  4. Step 4: Simplify right side
    66,274.35x = 3,297,962,568.22
  5. Step 5: Solve for x
    x = 3,297,962,568.22/66,274.35
  6. Step 6: Final answer
    x = 49,762.28

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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.