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Finding the Fourth Proportional to 3,958.90, 5,938.30 and 2,325.80

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Solution

The fourth proportional to 3,958.90, 5,938.30 and 2,325.80 is: 3,488.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.90 : 5,938.30 = 2,325.80 : x
  2. Step 2: Convert to fraction form
    3,958.90/5,938.30 = 2,325.80/x
  3. Step 3: Cross multiply
    3,958.90x = 5,938.30 × 2,325.80
  4. Step 4: Simplify right side
    3,958.90x = 13,811,307.17
  5. Step 5: Solve for x
    x = 13,811,307.17/3,958.90
  6. Step 6: Final answer
    x = 3,488.68

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1.5x scale

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.