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Finding the Fourth Proportional to 18,924.26, 26,110.20 and 12,210.20

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Solution

The fourth proportional to 18,924.26, 26,110.20 and 12,210.20 is: 16,846.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,924.26 : 26,110.20 = 12,210.20 : x
  2. Step 2: Convert to fraction form
    18,924.26/26,110.20 = 12,210.20/x
  3. Step 3: Cross multiply
    18,924.26x = 26,110.20 × 12,210.20
  4. Step 4: Simplify right side
    18,924.26x = 318,810,764.04
  5. Step 5: Solve for x
    x = 318,810,764.04/18,924.26
  6. Step 6: Final answer
    x = 16,846.67

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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.