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Finding the Fourth Proportional to 9,997.93, 13,797.26 and 5,521.68

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Solution

The fourth proportional to 9,997.93, 13,797.26 and 5,521.68 is: 7,619.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,997.93 : 13,797.26 = 5,521.68 : x
  2. Step 2: Convert to fraction form
    9,997.93/13,797.26 = 5,521.68/x
  3. Step 3: Cross multiply
    9,997.93x = 13,797.26 × 5,521.68
  4. Step 4: Simplify right side
    9,997.93x = 76,184,054.60
  5. Step 5: Solve for x
    x = 76,184,054.60/9,997.93
  6. Step 6: Final answer
    x = 7,619.98

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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.