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Finding the Fourth Proportional to 22,324.88, 30,808.68 and 12,894.80

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Solution

The fourth proportional to 22,324.88, 30,808.68 and 12,894.80 is: 17,795.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,324.88 : 30,808.68 = 12,894.80 : x
  2. Step 2: Convert to fraction form
    22,324.88/30,808.68 = 12,894.80/x
  3. Step 3: Cross multiply
    22,324.88x = 30,808.68 × 12,894.80
  4. Step 4: Simplify right side
    22,324.88x = 397,271,766.86
  5. Step 5: Solve for x
    x = 397,271,766.86/22,324.88
  6. Step 6: Final answer
    x = 17,795.02

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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.