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Finding the Fourth Proportional to 18,996.03, 28,476.62 and 7,300.44

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Solution

The fourth proportional to 18,996.03, 28,476.62 and 7,300.44 is: 10,943.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,996.03 : 28,476.62 = 7,300.44 : x
  2. Step 2: Convert to fraction form
    18,996.03/28,476.62 = 7,300.44/x
  3. Step 3: Cross multiply
    18,996.03x = 28,476.62 × 7,300.44
  4. Step 4: Simplify right side
    18,996.03x = 207,891,873.96
  5. Step 5: Solve for x
    x = 207,891,873.96/18,996.03
  6. Step 6: Final answer
    x = 10,943.96

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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.