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Finding the Fourth Proportional to 18,274.94, 27,416.44 and 5,798.78

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Solution

The fourth proportional to 18,274.94, 27,416.44 and 5,798.78 is: 8,699.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,274.94 : 27,416.44 = 5,798.78 : x
  2. Step 2: Convert to fraction form
    18,274.94/27,416.44 = 5,798.78/x
  3. Step 3: Cross multiply
    18,274.94x = 27,416.44 × 5,798.78
  4. Step 4: Simplify right side
    18,274.94x = 158,981,903.94
  5. Step 5: Solve for x
    x = 158,981,903.94/18,274.94
  6. Step 6: Final answer
    x = 8,699.45

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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.