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Finding the Fourth Proportional to 5,114.70, 7,673.85 and 4,934.70

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Solution

The fourth proportional to 5,114.70, 7,673.85 and 4,934.70 is: 7,403.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,114.70 : 7,673.85 = 4,934.70 : x
  2. Step 2: Convert to fraction form
    5,114.70/7,673.85 = 4,934.70/x
  3. Step 3: Cross multiply
    5,114.70x = 7,673.85 × 4,934.70
  4. Step 4: Simplify right side
    5,114.70x = 37,868,147.60
  5. Step 5: Solve for x
    x = 37,868,147.60/5,114.70
  6. Step 6: Final answer
    x = 7,403.79

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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.