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Finding the Fourth Proportional to 12,593.70, 18,890.55 and 8,216.10

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Solution

The fourth proportional to 12,593.70, 18,890.55 and 8,216.10 is: 12,324.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,593.70 : 18,890.55 = 8,216.10 : x
  2. Step 2: Convert to fraction form
    12,593.70/18,890.55 = 8,216.10/x
  3. Step 3: Cross multiply
    12,593.70x = 18,890.55 × 8,216.10
  4. Step 4: Simplify right side
    12,593.70x = 155,206,647.86
  5. Step 5: Solve for x
    x = 155,206,647.86/12,593.70
  6. Step 6: Final answer
    x = 12,324.15

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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.