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Finding the Fourth Proportional to 18,713.22, 28,063.99 and 6,230.32

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Solution

The fourth proportional to 18,713.22, 28,063.99 and 6,230.32 is: 9,343.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,713.22 : 28,063.99 = 6,230.32 : x
  2. Step 2: Convert to fraction form
    18,713.22/28,063.99 = 6,230.32/x
  3. Step 3: Cross multiply
    18,713.22x = 28,063.99 × 6,230.32
  4. Step 4: Simplify right side
    18,713.22x = 174,847,638.18
  5. Step 5: Solve for x
    x = 174,847,638.18/18,713.22
  6. Step 6: Final answer
    x = 9,343.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.