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Finding the Fourth Proportional to 7,586.69, 10,479.85 and 6,879.33

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Solution

The fourth proportional to 7,586.69, 10,479.85 and 6,879.33 is: 9,502.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,586.69 : 10,479.85 = 6,879.33 : x
  2. Step 2: Convert to fraction form
    7,586.69/10,479.85 = 6,879.33/x
  3. Step 3: Cross multiply
    7,586.69x = 10,479.85 × 6,879.33
  4. Step 4: Simplify right side
    7,586.69x = 72,094,329.30
  5. Step 5: Solve for x
    x = 72,094,329.30/7,586.69
  6. Step 6: Final answer
    x = 9,502.74

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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.