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Finding the Fourth Proportional to 11,620.88, 16,039.16 and 6,904.25

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Solution

The fourth proportional to 11,620.88, 16,039.16 and 6,904.25 is: 9,529.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,620.88 : 16,039.16 = 6,904.25 : x
  2. Step 2: Convert to fraction form
    11,620.88/16,039.16 = 6,904.25/x
  3. Step 3: Cross multiply
    11,620.88x = 16,039.16 × 6,904.25
  4. Step 4: Simplify right side
    11,620.88x = 110,738,370.43
  5. Step 5: Solve for x
    x = 110,738,370.43/11,620.88
  6. Step 6: Final answer
    x = 9,529.26

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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.