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Finding the Fourth Proportional to 19,496.62, 29,274.09 and 18,816.22

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Solution

The fourth proportional to 19,496.62, 29,274.09 and 18,816.22 is: 28,252.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,496.62 : 29,274.09 = 18,816.22 : x
  2. Step 2: Convert to fraction form
    19,496.62/29,274.09 = 18,816.22/x
  3. Step 3: Cross multiply
    19,496.62x = 29,274.09 × 18,816.22
  4. Step 4: Simplify right side
    19,496.62x = 550,827,717.74
  5. Step 5: Solve for x
    x = 550,827,717.74/19,496.62
  6. Step 6: Final answer
    x = 28,252.47

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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.