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Finding the Fourth Proportional to 17,922.80, 24,728.28 and 12,252.80

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Solution

The fourth proportional to 17,922.80, 24,728.28 and 12,252.80 is: 16,905.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,922.80 : 24,728.28 = 12,252.80 : x
  2. Step 2: Convert to fraction form
    17,922.80/24,728.28 = 12,252.80/x
  3. Step 3: Cross multiply
    17,922.80x = 24,728.28 × 12,252.80
  4. Step 4: Simplify right side
    17,922.80x = 302,990,669.18
  5. Step 5: Solve for x
    x = 302,990,669.18/17,922.80
  6. Step 6: Final answer
    x = 16,905.32

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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.