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Finding the Fourth Proportional to 6,661.36, 9,992.58 and 2,768.32

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Solution

The fourth proportional to 6,661.36, 9,992.58 and 2,768.32 is: 4,152.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,661.36 : 9,992.58 = 2,768.32 : x
  2. Step 2: Convert to fraction form
    6,661.36/9,992.58 = 2,768.32/x
  3. Step 3: Cross multiply
    6,661.36x = 9,992.58 × 2,768.32
  4. Step 4: Simplify right side
    6,661.36x = 27,662,659.07
  5. Step 5: Solve for x
    x = 27,662,659.07/6,661.36
  6. Step 6: Final answer
    x = 4,152.70

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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.