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Finding the Fourth Proportional to 19,213.44, 28,813.64 and 9,346.44

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Solution

The fourth proportional to 19,213.44, 28,813.64 and 9,346.44 is: 14,016.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,213.44 : 28,813.64 = 9,346.44 : x
  2. Step 2: Convert to fraction form
    19,213.44/28,813.64 = 9,346.44/x
  3. Step 3: Cross multiply
    19,213.44x = 28,813.64 × 9,346.44
  4. Step 4: Simplify right side
    19,213.44x = 269,304,957.44
  5. Step 5: Solve for x
    x = 269,304,957.44/19,213.44
  6. Step 6: Final answer
    x = 14,016.49

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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.