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Finding the Fourth Proportional to 6,861.93, 9,465.98 and 4,339.79

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Solution

The fourth proportional to 6,861.93, 9,465.98 and 4,339.79 is: 5,986.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861.93 : 9,465.98 = 4,339.79 : x
  2. Step 2: Convert to fraction form
    6,861.93/9,465.98 = 4,339.79/x
  3. Step 3: Cross multiply
    6,861.93x = 9,465.98 × 4,339.79
  4. Step 4: Simplify right side
    6,861.93x = 41,080,367.31
  5. Step 5: Solve for x
    x = 41,080,367.31/6,861.93
  6. Step 6: Final answer
    x = 5,986.71

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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.