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Finding the Fourth Proportional to 38,708.99, 57,969.97 and 22,018.42

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Solution

The fourth proportional to 38,708.99, 57,969.97 and 22,018.42 is: 32,974.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,708.99 : 57,969.97 = 22,018.42 : x
  2. Step 2: Convert to fraction form
    38,708.99/57,969.97 = 22,018.42/x
  3. Step 3: Cross multiply
    38,708.99x = 57,969.97 × 22,018.42
  4. Step 4: Simplify right side
    38,708.99x = 1,276,407,051.78
  5. Step 5: Solve for x
    x = 1,276,407,051.78/38,708.99
  6. Step 6: Final answer
    x = 32,974.44

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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.