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Finding the Fourth Proportional to 19,603.44, 27,054.72 and 11,647.44

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Solution

The fourth proportional to 19,603.44, 27,054.72 and 11,647.44 is: 16,074.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,603.44 : 27,054.72 = 11,647.44 : x
  2. Step 2: Convert to fraction form
    19,603.44/27,054.72 = 11,647.44/x
  3. Step 3: Cross multiply
    19,603.44x = 27,054.72 × 11,647.44
  4. Step 4: Simplify right side
    19,603.44x = 315,118,227.92
  5. Step 5: Solve for x
    x = 315,118,227.92/19,603.44
  6. Step 6: Final answer
    x = 16,074.64

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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.