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Finding the Fourth Proportional to 38,289.96, 52,839.68 and 21,522.96

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Solution

The fourth proportional to 38,289.96, 52,839.68 and 21,522.96 is: 29,701.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,289.96 : 52,839.68 = 21,522.96 : x
  2. Step 2: Convert to fraction form
    38,289.96/52,839.68 = 21,522.96/x
  3. Step 3: Cross multiply
    38,289.96x = 52,839.68 × 21,522.96
  4. Step 4: Simplify right side
    38,289.96x = 1,137,266,211.44
  5. Step 5: Solve for x
    x = 1,137,266,211.44/38,289.96
  6. Step 6: Final answer
    x = 29,701.42

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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.