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Finding the Fourth Proportional to 6,860.36, 9,467.88 and 5,739.32

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Solution

The fourth proportional to 6,860.36, 9,467.88 and 5,739.32 is: 7,920.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,860.36 : 9,467.88 = 5,739.32 : x
  2. Step 2: Convert to fraction form
    6,860.36/9,467.88 = 5,739.32/x
  3. Step 3: Cross multiply
    6,860.36x = 9,467.88 × 5,739.32
  4. Step 4: Simplify right side
    6,860.36x = 54,339,193.04
  5. Step 5: Solve for x
    x = 54,339,193.04/6,860.36
  6. Step 6: Final answer
    x = 7,920.75

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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.