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Finding the Fourth Proportional to 15,992.56, 22,069.44 and 9,278.08

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Solution

The fourth proportional to 15,992.56, 22,069.44 and 9,278.08 is: 12,803.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,992.56 : 22,069.44 = 9,278.08 : x
  2. Step 2: Convert to fraction form
    15,992.56/22,069.44 = 9,278.08/x
  3. Step 3: Cross multiply
    15,992.56x = 22,069.44 × 9,278.08
  4. Step 4: Simplify right side
    15,992.56x = 204,762,029.88
  5. Step 5: Solve for x
    x = 204,762,029.88/15,992.56
  6. Step 6: Final answer
    x = 12,803.58

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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.