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Finding the Fourth Proportional to 6,885.27, 9,503.06 and 4,090.23

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Solution

The fourth proportional to 6,885.27, 9,503.06 and 4,090.23 is: 5,645.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,885.27 : 9,503.06 = 4,090.23 : x
  2. Step 2: Convert to fraction form
    6,885.27/9,503.06 = 4,090.23/x
  3. Step 3: Cross multiply
    6,885.27x = 9,503.06 × 4,090.23
  4. Step 4: Simplify right side
    6,885.27x = 38,869,680.65
  5. Step 5: Solve for x
    x = 38,869,680.65/6,885.27
  6. Step 6: Final answer
    x = 5,645.34

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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.