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Finding the Fourth Proportional to 30,448.92, 45,674.36 and 8,262.24

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Solution

The fourth proportional to 30,448.92, 45,674.36 and 8,262.24 is: 12,393.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,448.92 : 45,674.36 = 8,262.24 : x
  2. Step 2: Convert to fraction form
    30,448.92/45,674.36 = 8,262.24/x
  3. Step 3: Cross multiply
    30,448.92x = 45,674.36 × 8,262.24
  4. Step 4: Simplify right side
    30,448.92x = 377,372,524.17
  5. Step 5: Solve for x
    x = 377,372,524.17/30,448.92
  6. Step 6: Final answer
    x = 12,393.63

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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.