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Finding the Fourth Proportional to 12,693.44, 17,514.46 and 7,974.99

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Solution

The fourth proportional to 12,693.44, 17,514.46 and 7,974.99 is: 11,003.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,693.44 : 17,514.46 = 7,974.99 : x
  2. Step 2: Convert to fraction form
    12,693.44/17,514.46 = 7,974.99/x
  3. Step 3: Cross multiply
    12,693.44x = 17,514.46 × 7,974.99
  4. Step 4: Simplify right side
    12,693.44x = 139,677,653.32
  5. Step 5: Solve for x
    x = 139,677,653.32/12,693.44
  6. Step 6: Final answer
    x = 11,003.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.