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Finding the Fourth Proportional to 18,863.14, 26,048.64 and 12,164.44

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Solution

The fourth proportional to 18,863.14, 26,048.64 and 12,164.44 is: 16,798.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,863.14 : 26,048.64 = 12,164.44 : x
  2. Step 2: Convert to fraction form
    18,863.14/26,048.64 = 12,164.44/x
  3. Step 3: Cross multiply
    18,863.14x = 26,048.64 × 12,164.44
  4. Step 4: Simplify right side
    18,863.14x = 316,867,118.36
  5. Step 5: Solve for x
    x = 316,867,118.36/18,863.14
  6. Step 6: Final answer
    x = 16,798.22

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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.