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Finding the Fourth Proportional to 27,994.63, 41,992.75 and 7,218.13

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Solution

The fourth proportional to 27,994.63, 41,992.75 and 7,218.13 is: 10,827.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,994.63 : 41,992.75 = 7,218.13 : x
  2. Step 2: Convert to fraction form
    27,994.63/41,992.75 = 7,218.13/x
  3. Step 3: Cross multiply
    27,994.63x = 41,992.75 × 7,218.13
  4. Step 4: Simplify right side
    27,994.63x = 303,109,128.56
  5. Step 5: Solve for x
    x = 303,109,128.56/27,994.63
  6. Step 6: Final answer
    x = 10,827.40

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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.