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Finding the Fourth Proportional to 6,479.67, 8,945.67 and 4,358.28

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Solution

The fourth proportional to 6,479.67, 8,945.67 and 4,358.28 is: 6,016.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,479.67 : 8,945.67 = 4,358.28 : x
  2. Step 2: Convert to fraction form
    6,479.67/8,945.67 = 4,358.28/x
  3. Step 3: Cross multiply
    6,479.67x = 8,945.67 × 4,358.28
  4. Step 4: Simplify right side
    6,479.67x = 38,987,734.65
  5. Step 5: Solve for x
    x = 38,987,734.65/6,479.67
  6. Step 6: Final answer
    x = 6,016.93

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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.