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Finding the Fourth Proportional to 5,266.68, 7,890.30 and 4,683.48

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Solution

The fourth proportional to 5,266.68, 7,890.30 and 4,683.48 is: 7,016.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,266.68 : 7,890.30 = 4,683.48 : x
  2. Step 2: Convert to fraction form
    5,266.68/7,890.30 = 4,683.48/x
  3. Step 3: Cross multiply
    5,266.68x = 7,890.30 × 4,683.48
  4. Step 4: Simplify right side
    5,266.68x = 36,954,062.24
  5. Step 5: Solve for x
    x = 36,954,062.24/5,266.68
  6. Step 6: Final answer
    x = 7,016.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.