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Finding the Fourth Proportional to 14,992.33, 20,691.17 and 12,469.99

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Solution

The fourth proportional to 14,992.33, 20,691.17 and 12,469.99 is: 17,210.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,992.33 : 20,691.17 = 12,469.99 : x
  2. Step 2: Convert to fraction form
    14,992.33/20,691.17 = 12,469.99/x
  3. Step 3: Cross multiply
    14,992.33x = 20,691.17 × 12,469.99
  4. Step 4: Simplify right side
    14,992.33x = 258,018,682.99
  5. Step 5: Solve for x
    x = 258,018,682.99/14,992.33
  6. Step 6: Final answer
    x = 17,210.05

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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.