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Finding the Fourth Proportional to 27,889.31, 38,489.31 and 17,281.01

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Solution

The fourth proportional to 27,889.31, 38,489.31 and 17,281.01 is: 23,849.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,889.31 : 38,489.31 = 17,281.01 : x
  2. Step 2: Convert to fraction form
    27,889.31/38,489.31 = 17,281.01/x
  3. Step 3: Cross multiply
    27,889.31x = 38,489.31 × 17,281.01
  4. Step 4: Simplify right side
    27,889.31x = 665,134,247.23
  5. Step 5: Solve for x
    x = 665,134,247.23/27,889.31
  6. Step 6: Final answer
    x = 23,849.07

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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.