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Finding the Fourth Proportional to 6,290.43, 8,683.16 and 4,723.05

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Solution

The fourth proportional to 6,290.43, 8,683.16 and 4,723.05 is: 6,519.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,290.43 : 8,683.16 = 4,723.05 : x
  2. Step 2: Convert to fraction form
    6,290.43/8,683.16 = 4,723.05/x
  3. Step 3: Cross multiply
    6,290.43x = 8,683.16 × 4,723.05
  4. Step 4: Simplify right side
    6,290.43x = 41,010,975.22
  5. Step 5: Solve for x
    x = 41,010,975.22/6,290.43
  6. Step 6: Final answer
    x = 6,519.58

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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.