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Finding the Fourth Proportional to 57,994.38, 86,991.56 and 14,218.38

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Solution

The fourth proportional to 57,994.38, 86,991.56 and 14,218.38 is: 21,327.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,994.38 : 86,991.56 = 14,218.38 : x
  2. Step 2: Convert to fraction form
    57,994.38/86,991.56 = 14,218.38/x
  3. Step 3: Cross multiply
    57,994.38x = 86,991.56 × 14,218.38
  4. Step 4: Simplify right side
    57,994.38x = 1,236,879,056.87
  5. Step 5: Solve for x
    x = 1,236,879,056.87/57,994.38
  6. Step 6: Final answer
    x = 21,327.57

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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.