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Finding the Fourth Proportional to 4,938.85, 7,397.71 and 3,997.73

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Solution

The fourth proportional to 4,938.85, 7,397.71 and 3,997.73 is: 5,988.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,938.85 : 7,397.71 = 3,997.73 : x
  2. Step 2: Convert to fraction form
    4,938.85/7,397.71 = 3,997.73/x
  3. Step 3: Cross multiply
    4,938.85x = 7,397.71 × 3,997.73
  4. Step 4: Simplify right side
    4,938.85x = 29,574,036.57
  5. Step 5: Solve for x
    x = 29,574,036.57/4,938.85
  6. Step 6: Final answer
    x = 5,988.05

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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.