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Finding the Fourth Proportional to 66,917.34, 100,376.01 and 27,507.60

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Solution

The fourth proportional to 66,917.34, 100,376.01 and 27,507.60 is: 41,261.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,917.34 : 100,376.01 = 27,507.60 : x
  2. Step 2: Convert to fraction form
    66,917.34/100,376.01 = 27,507.60/x
  3. Step 3: Cross multiply
    66,917.34x = 100,376.01 × 27,507.60
  4. Step 4: Simplify right side
    66,917.34x = 2,761,103,132.68
  5. Step 5: Solve for x
    x = 2,761,103,132.68/66,917.34
  6. Step 6: Final answer
    x = 41,261.40

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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.