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Finding the Fourth Proportional to 12,297.85, 18,451.43 and 7,371.03

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Solution

The fourth proportional to 12,297.85, 18,451.43 and 7,371.03 is: 11,059.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,297.85 : 18,451.43 = 7,371.03 : x
  2. Step 2: Convert to fraction form
    12,297.85/18,451.43 = 7,371.03/x
  3. Step 3: Cross multiply
    12,297.85x = 18,451.43 × 7,371.03
  4. Step 4: Simplify right side
    12,297.85x = 136,006,044.07
  5. Step 5: Solve for x
    x = 136,006,044.07/12,297.85
  6. Step 6: Final answer
    x = 11,059.34

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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.