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Finding the Fourth Proportional to 38,383.44, 52,969.02 and 21,388.41

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Solution

The fourth proportional to 38,383.44, 52,969.02 and 21,388.41 is: 29,515.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,383.44 : 52,969.02 = 21,388.41 : x
  2. Step 2: Convert to fraction form
    38,383.44/52,969.02 = 21,388.41/x
  3. Step 3: Cross multiply
    38,383.44x = 52,969.02 × 21,388.41
  4. Step 4: Simplify right side
    38,383.44x = 1,132,923,117.06
  5. Step 5: Solve for x
    x = 1,132,923,117.06/38,383.44
  6. Step 6: Final answer
    x = 29,515.93

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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.