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Finding the Fourth Proportional to 38,398.57, 57,605.69 and 21,766.03

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Solution

The fourth proportional to 38,398.57, 57,605.69 and 21,766.03 is: 32,653.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,398.57 : 57,605.69 = 21,766.03 : x
  2. Step 2: Convert to fraction form
    38,398.57/57,605.69 = 21,766.03/x
  3. Step 3: Cross multiply
    38,398.57x = 57,605.69 × 21,766.03
  4. Step 4: Simplify right side
    38,398.57x = 1,253,847,087.11
  5. Step 5: Solve for x
    x = 1,253,847,087.11/38,398.57
  6. Step 6: Final answer
    x = 32,653.49

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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.