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Finding the Fourth Proportional to 18,598.98, 27,898.62 and 6,119.85

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Solution

The fourth proportional to 18,598.98, 27,898.62 and 6,119.85 is: 9,179.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,598.98 : 27,898.62 = 6,119.85 : x
  2. Step 2: Convert to fraction form
    18,598.98/27,898.62 = 6,119.85/x
  3. Step 3: Cross multiply
    18,598.98x = 27,898.62 × 6,119.85
  4. Step 4: Simplify right side
    18,598.98x = 170,735,369.61
  5. Step 5: Solve for x
    x = 170,735,369.61/18,598.98
  6. Step 6: Final answer
    x = 9,179.82

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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.