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Finding the Fourth Proportional to 27,698.91, 41,548.37 and 12,918.17

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Solution

The fourth proportional to 27,698.91, 41,548.37 and 12,918.17 is: 19,377.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,698.91 : 41,548.37 = 12,918.17 : x
  2. Step 2: Convert to fraction form
    27,698.91/41,548.37 = 12,918.17/x
  3. Step 3: Cross multiply
    27,698.91x = 41,548.37 × 12,918.17
  4. Step 4: Simplify right side
    27,698.91x = 536,728,634.55
  5. Step 5: Solve for x
    x = 536,728,634.55/27,698.91
  6. Step 6: Final answer
    x = 19,377.25

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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.