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Finding the Fourth Proportional to 19,898.55, 29,844.11 and 8,049.22

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Solution

The fourth proportional to 19,898.55, 29,844.11 and 8,049.22 is: 12,072.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,898.55 : 29,844.11 = 8,049.22 : x
  2. Step 2: Convert to fraction form
    19,898.55/29,844.11 = 8,049.22/x
  3. Step 3: Cross multiply
    19,898.55x = 29,844.11 × 8,049.22
  4. Step 4: Simplify right side
    19,898.55x = 240,221,752.61
  5. Step 5: Solve for x
    x = 240,221,752.61/19,898.55
  6. Step 6: Final answer
    x = 12,072.32

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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.