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Finding the Fourth Proportional to 20,167.01, 27,831.15 and 11,092.76

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Solution

The fourth proportional to 20,167.01, 27,831.15 and 11,092.76 is: 15,308.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,167.01 : 27,831.15 = 11,092.76 : x
  2. Step 2: Convert to fraction form
    20,167.01/27,831.15 = 11,092.76/x
  3. Step 3: Cross multiply
    20,167.01x = 27,831.15 × 11,092.76
  4. Step 4: Simplify right side
    20,167.01x = 308,724,154.41
  5. Step 5: Solve for x
    x = 308,724,154.41/20,167.01
  6. Step 6: Final answer
    x = 15,308.37

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1.5x scale

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.