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Finding the Fourth Proportional to 18,623.25, 27,934.65 and 7,529.85

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Solution

The fourth proportional to 18,623.25, 27,934.65 and 7,529.85 is: 11,294.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,623.25 : 27,934.65 = 7,529.85 : x
  2. Step 2: Convert to fraction form
    18,623.25/27,934.65 = 7,529.85/x
  3. Step 3: Cross multiply
    18,623.25x = 27,934.65 × 7,529.85
  4. Step 4: Simplify right side
    18,623.25x = 210,343,724.30
  5. Step 5: Solve for x
    x = 210,343,724.30/18,623.25
  6. Step 6: Final answer
    x = 11,294.68

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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.