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Finding the Fourth Proportional to 6,976.08, 9,627.60 and 4,144.32

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Solution

The fourth proportional to 6,976.08, 9,627.60 and 4,144.32 is: 5,719.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,976.08 : 9,627.60 = 4,144.32 : x
  2. Step 2: Convert to fraction form
    6,976.08/9,627.60 = 4,144.32/x
  3. Step 3: Cross multiply
    6,976.08x = 9,627.60 × 4,144.32
  4. Step 4: Simplify right side
    6,976.08x = 39,899,855.23
  5. Step 5: Solve for x
    x = 39,899,855.23/6,976.08
  6. Step 6: Final answer
    x = 5,719.52

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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.