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Finding the Fourth Proportional to 66,576.53, 99,915.93 and 27,166.79

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Solution

The fourth proportional to 66,576.53, 99,915.93 and 27,166.79 is: 40,771.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,576.53 : 99,915.93 = 27,166.79 : x
  2. Step 2: Convert to fraction form
    66,576.53/99,915.93 = 27,166.79/x
  3. Step 3: Cross multiply
    66,576.53x = 99,915.93 × 27,166.79
  4. Step 4: Simplify right side
    66,576.53x = 2,714,395,337.75
  5. Step 5: Solve for x
    x = 2,714,395,337.75/66,576.53
  6. Step 6: Final answer
    x = 40,771.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.