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Finding the Fourth Proportional to 27,212.40, 40,804.44 and 9,679.68

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Solution

The fourth proportional to 27,212.40, 40,804.44 and 9,679.68 is: 14,514.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,212.40 : 40,804.44 = 9,679.68 : x
  2. Step 2: Convert to fraction form
    27,212.40/40,804.44 = 9,679.68/x
  3. Step 3: Cross multiply
    27,212.40x = 40,804.44 × 9,679.68
  4. Step 4: Simplify right side
    27,212.40x = 394,973,921.78
  5. Step 5: Solve for x
    x = 394,973,921.78/27,212.40
  6. Step 6: Final answer
    x = 14,514.48

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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.