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Finding the Fourth Proportional to 5,289.06, 7,299 and 3,194.40

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Solution

The fourth proportional to 5,289.06, 7,299 and 3,194.40 is: 4,408.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.06 : 7,299 = 3,194.40 : x
  2. Step 2: Convert to fraction form
    5,289.06/7,299 = 3,194.40/x
  3. Step 3: Cross multiply
    5,289.06x = 7,299 × 3,194.40
  4. Step 4: Simplify right side
    5,289.06x = 23,315,925.60
  5. Step 5: Solve for x
    x = 23,315,925.60/5,289.06
  6. Step 6: Final answer
    x = 4,408.33

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1.5x scale

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.