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Finding the Fourth Proportional to 16,659.14, 22,989.87 and 9,943.43

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Solution

The fourth proportional to 16,659.14, 22,989.87 and 9,943.43 is: 13,722.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,659.14 : 22,989.87 = 9,943.43 : x
  2. Step 2: Convert to fraction form
    16,659.14/22,989.87 = 9,943.43/x
  3. Step 3: Cross multiply
    16,659.14x = 22,989.87 × 9,943.43
  4. Step 4: Simplify right side
    16,659.14x = 228,598,048.10
  5. Step 5: Solve for x
    x = 228,598,048.10/16,659.14
  6. Step 6: Final answer
    x = 13,722.08

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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.