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Finding the Fourth Proportional to 18,381.84, 27,559.32 and 5,894.76

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Solution

The fourth proportional to 18,381.84, 27,559.32 and 5,894.76 is: 8,837.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381.84 : 27,559.32 = 5,894.76 : x
  2. Step 2: Convert to fraction form
    18,381.84/27,559.32 = 5,894.76/x
  3. Step 3: Cross multiply
    18,381.84x = 27,559.32 × 5,894.76
  4. Step 4: Simplify right side
    18,381.84x = 162,455,536.54
  5. Step 5: Solve for x
    x = 162,455,536.54/18,381.84
  6. Step 6: Final answer
    x = 8,837.83

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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.