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Finding the Fourth Proportional to 6,876.33, 9,479.36 and 5,081.16

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Solution

The fourth proportional to 6,876.33, 9,479.36 and 5,081.16 is: 7,004.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,876.33 : 9,479.36 = 5,081.16 : x
  2. Step 2: Convert to fraction form
    6,876.33/9,479.36 = 5,081.16/x
  3. Step 3: Cross multiply
    6,876.33x = 9,479.36 × 5,081.16
  4. Step 4: Simplify right side
    6,876.33x = 48,166,193.11
  5. Step 5: Solve for x
    x = 48,166,193.11/6,876.33
  6. Step 6: Final answer
    x = 7,004.64

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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.