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Finding the Fourth Proportional to 18,713.22, 28,071.24 and 7,026.54

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Solution

The fourth proportional to 18,713.22, 28,071.24 and 7,026.54 is: 10,540.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,713.22 : 28,071.24 = 7,026.54 : x
  2. Step 2: Convert to fraction form
    18,713.22/28,071.24 = 7,026.54/x
  3. Step 3: Cross multiply
    18,713.22x = 28,071.24 × 7,026.54
  4. Step 4: Simplify right side
    18,713.22x = 197,243,690.71
  5. Step 5: Solve for x
    x = 197,243,690.71/18,713.22
  6. Step 6: Final answer
    x = 10,540.34

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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.