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Finding the Fourth Proportional to 15,793.63, 21,796.49 and 9,081.44

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Solution

The fourth proportional to 15,793.63, 21,796.49 and 9,081.44 is: 12,533.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,793.63 : 21,796.49 = 9,081.44 : x
  2. Step 2: Convert to fraction form
    15,793.63/21,796.49 = 9,081.44/x
  3. Step 3: Cross multiply
    15,793.63x = 21,796.49 × 9,081.44
  4. Step 4: Simplify right side
    15,793.63x = 197,943,572.91
  5. Step 5: Solve for x
    x = 197,943,572.91/15,793.63
  6. Step 6: Final answer
    x = 12,533.12

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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.