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Finding the Fourth Proportional to 16,997.88, 23,448.88 and 11,031.42

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Solution

The fourth proportional to 16,997.88, 23,448.88 and 11,031.42 is: 15,218.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,997.88 : 23,448.88 = 11,031.42 : x
  2. Step 2: Convert to fraction form
    16,997.88/23,448.88 = 11,031.42/x
  3. Step 3: Cross multiply
    16,997.88x = 23,448.88 × 11,031.42
  4. Step 4: Simplify right side
    16,997.88x = 258,674,443.81
  5. Step 5: Solve for x
    x = 258,674,443.81/16,997.88
  6. Step 6: Final answer
    x = 15,218.04

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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.