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Finding the Fourth Proportional to 66,096.21, 91,212.93 and 35,881.56

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Solution

The fourth proportional to 66,096.21, 91,212.93 and 35,881.56 is: 49,516.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,096.21 : 91,212.93 = 35,881.56 : x
  2. Step 2: Convert to fraction form
    66,096.21/91,212.93 = 35,881.56/x
  3. Step 3: Cross multiply
    66,096.21x = 91,212.93 × 35,881.56
  4. Step 4: Simplify right side
    66,096.21x = 3,272,862,220.57
  5. Step 5: Solve for x
    x = 3,272,862,220.57/66,096.21
  6. Step 6: Final answer
    x = 49,516.64

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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.