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Finding the Fourth Proportional to 38,493.69, 57,759.69 and 21,616.23

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Solution

The fourth proportional to 38,493.69, 57,759.69 and 21,616.23 is: 32,435.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,493.69 : 57,759.69 = 21,616.23 : x
  2. Step 2: Convert to fraction form
    38,493.69/57,759.69 = 21,616.23/x
  3. Step 3: Cross multiply
    38,493.69x = 57,759.69 × 21,616.23
  4. Step 4: Simplify right side
    38,493.69x = 1,248,546,743.77
  5. Step 5: Solve for x
    x = 1,248,546,743.77/38,493.69
  6. Step 6: Final answer
    x = 32,435.10

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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.