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Finding the Fourth Proportional to 18,477.79, 27,709.48 and 5,994.79

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Solution

The fourth proportional to 18,477.79, 27,709.48 and 5,994.79 is: 8,989.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,477.79 : 27,709.48 = 5,994.79 : x
  2. Step 2: Convert to fraction form
    18,477.79/27,709.48 = 5,994.79/x
  3. Step 3: Cross multiply
    18,477.79x = 27,709.48 × 5,994.79
  4. Step 4: Simplify right side
    18,477.79x = 166,112,429.35
  5. Step 5: Solve for x
    x = 166,112,429.35/18,477.79
  6. Step 6: Final answer
    x = 8,989.84

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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.