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Finding the Fourth Proportional to 66,707.42, 100,061.32 and 27,264.54

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Solution

The fourth proportional to 66,707.42, 100,061.32 and 27,264.54 is: 40,896.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,707.42 : 100,061.32 = 27,264.54 : x
  2. Step 2: Convert to fraction form
    66,707.42/100,061.32 = 27,264.54/x
  3. Step 3: Cross multiply
    66,707.42x = 100,061.32 × 27,264.54
  4. Step 4: Simplify right side
    66,707.42x = 2,728,125,861.59
  5. Step 5: Solve for x
    x = 2,728,125,861.59/66,707.42
  6. Step 6: Final answer
    x = 40,896.89

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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.