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Finding the Fourth Proportional to 38,603.56, 57,938.54 and 21,996.94

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Solution

The fourth proportional to 38,603.56, 57,938.54 and 21,996.94 is: 33,014.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,603.56 : 57,938.54 = 21,996.94 : x
  2. Step 2: Convert to fraction form
    38,603.56/57,938.54 = 21,996.94/x
  3. Step 3: Cross multiply
    38,603.56x = 57,938.54 × 21,996.94
  4. Step 4: Simplify right side
    38,603.56x = 1,274,470,588.07
  5. Step 5: Solve for x
    x = 1,274,470,588.07/38,603.56
  6. Step 6: Final answer
    x = 33,014.33

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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.