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Finding the Fourth Proportional to 19,326.60, 28,992.60 and 8,233.20

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Solution

The fourth proportional to 19,326.60, 28,992.60 and 8,233.20 is: 12,350.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,326.60 : 28,992.60 = 8,233.20 : x
  2. Step 2: Convert to fraction form
    19,326.60/28,992.60 = 8,233.20/x
  3. Step 3: Cross multiply
    19,326.60x = 28,992.60 × 8,233.20
  4. Step 4: Simplify right side
    19,326.60x = 238,701,874.32
  5. Step 5: Solve for x
    x = 238,701,874.32/19,326.60
  6. Step 6: Final answer
    x = 12,350.95

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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.