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Finding the Fourth Proportional to 18,093.84, 27,154.36 and 7,712.72

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Solution

The fourth proportional to 18,093.84, 27,154.36 and 7,712.72 is: 11,574.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,093.84 : 27,154.36 = 7,712.72 : x
  2. Step 2: Convert to fraction form
    18,093.84/27,154.36 = 7,712.72/x
  3. Step 3: Cross multiply
    18,093.84x = 27,154.36 × 7,712.72
  4. Step 4: Simplify right side
    18,093.84x = 209,433,975.46
  5. Step 5: Solve for x
    x = 209,433,975.46/18,093.84
  6. Step 6: Final answer
    x = 11,574.88

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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.