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Finding the Fourth Proportional to 18,474.84, 27,712.07 and 4,623.84

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Solution

The fourth proportional to 18,474.84, 27,712.07 and 4,623.84 is: 6,935.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,474.84 : 27,712.07 = 4,623.84 : x
  2. Step 2: Convert to fraction form
    18,474.84/27,712.07 = 4,623.84/x
  3. Step 3: Cross multiply
    18,474.84x = 27,712.07 × 4,623.84
  4. Step 4: Simplify right side
    18,474.84x = 128,136,177.75
  5. Step 5: Solve for x
    x = 128,136,177.75/18,474.84
  6. Step 6: Final answer
    x = 6,935.71

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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.