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Finding the Fourth Proportional to 85,076.67, 127,614.14 and 21,896.55

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Solution

The fourth proportional to 85,076.67, 127,614.14 and 21,896.55 is: 32,844.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,076.67 : 127,614.14 = 21,896.55 : x
  2. Step 2: Convert to fraction form
    85,076.67/127,614.14 = 21,896.55/x
  3. Step 3: Cross multiply
    85,076.67x = 127,614.14 × 21,896.55
  4. Step 4: Simplify right side
    85,076.67x = 2,794,308,649.66
  5. Step 5: Solve for x
    x = 2,794,308,649.66/85,076.67
  6. Step 6: Final answer
    x = 32,844.59

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1.5x scale

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.