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Finding the Fourth Proportional to 9,659.80, 14,483.22 and 3,813.40

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Solution

The fourth proportional to 9,659.80, 14,483.22 and 3,813.40 is: 5,717.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,659.80 : 14,483.22 = 3,813.40 : x
  2. Step 2: Convert to fraction form
    9,659.80/14,483.22 = 3,813.40/x
  3. Step 3: Cross multiply
    9,659.80x = 14,483.22 × 3,813.40
  4. Step 4: Simplify right side
    9,659.80x = 55,230,311.15
  5. Step 5: Solve for x
    x = 55,230,311.15/9,659.80
  6. Step 6: Final answer
    x = 5,717.54

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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.