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Finding the Fourth Proportional to 13,483.57, 18,606.09 and 8,710.44

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Solution

The fourth proportional to 13,483.57, 18,606.09 and 8,710.44 is: 12,019.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,483.57 : 18,606.09 = 8,710.44 : x
  2. Step 2: Convert to fraction form
    13,483.57/18,606.09 = 8,710.44/x
  3. Step 3: Cross multiply
    13,483.57x = 18,606.09 × 8,710.44
  4. Step 4: Simplify right side
    13,483.57x = 162,067,230.58
  5. Step 5: Solve for x
    x = 162,067,230.58/13,483.57
  6. Step 6: Final answer
    x = 12,019.61

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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.