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Finding the Fourth Proportional to 19,894.28, 29,841.44 and 9,474.44

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Solution

The fourth proportional to 19,894.28, 29,841.44 and 9,474.44 is: 14,211.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,894.28 : 29,841.44 = 9,474.44 : x
  2. Step 2: Convert to fraction form
    19,894.28/29,841.44 = 9,474.44/x
  3. Step 3: Cross multiply
    19,894.28x = 29,841.44 × 9,474.44
  4. Step 4: Simplify right side
    19,894.28x = 282,730,932.79
  5. Step 5: Solve for x
    x = 282,730,932.79/19,894.28
  6. Step 6: Final answer
    x = 14,211.67

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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.