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Finding the Fourth Proportional to 12,672.43, 18,996.88 and 6,012.05

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Solution

The fourth proportional to 12,672.43, 18,996.88 and 6,012.05 is: 9,012.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,672.43 : 18,996.88 = 6,012.05 : x
  2. Step 2: Convert to fraction form
    12,672.43/18,996.88 = 6,012.05/x
  3. Step 3: Cross multiply
    12,672.43x = 18,996.88 × 6,012.05
  4. Step 4: Simplify right side
    12,672.43x = 114,210,162.34
  5. Step 5: Solve for x
    x = 114,210,162.34/12,672.43
  6. Step 6: Final answer
    x = 9,012.49

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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.