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Finding the Fourth Proportional to 6,578.15, 9,083.75 and 6,118.88

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Solution

The fourth proportional to 6,578.15, 9,083.75 and 6,118.88 is: 8,449.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,578.15 : 9,083.75 = 6,118.88 : x
  2. Step 2: Convert to fraction form
    6,578.15/9,083.75 = 6,118.88/x
  3. Step 3: Cross multiply
    6,578.15x = 9,083.75 × 6,118.88
  4. Step 4: Simplify right side
    6,578.15x = 55,582,300.19
  5. Step 5: Solve for x
    x = 55,582,300.19/6,578.15
  6. Step 6: Final answer
    x = 8,449.54

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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.