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Finding the Fourth Proportional to 19,203.44, 28,786.44 and 9,342.32

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Solution

The fourth proportional to 19,203.44, 28,786.44 and 9,342.32 is: 14,004.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,203.44 : 28,786.44 = 9,342.32 : x
  2. Step 2: Convert to fraction form
    19,203.44/28,786.44 = 9,342.32/x
  3. Step 3: Cross multiply
    19,203.44x = 28,786.44 × 9,342.32
  4. Step 4: Simplify right side
    19,203.44x = 268,932,134.14
  5. Step 5: Solve for x
    x = 268,932,134.14/19,203.44
  6. Step 6: Final answer
    x = 14,004.37

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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.