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Finding the Fourth Proportional to 9,047.39, 13,586.49 and 5,890.20

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Solution

The fourth proportional to 9,047.39, 13,586.49 and 5,890.20 is: 8,845.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,047.39 : 13,586.49 = 5,890.20 : x
  2. Step 2: Convert to fraction form
    9,047.39/13,586.49 = 5,890.20/x
  3. Step 3: Cross multiply
    9,047.39x = 13,586.49 × 5,890.20
  4. Step 4: Simplify right side
    9,047.39x = 80,027,143.40
  5. Step 5: Solve for x
    x = 80,027,143.40/9,047.39
  6. Step 6: Final answer
    x = 8,845.33

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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.