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Finding the Fourth Proportional to 12,811.98, 19,217.97 and 5,023.02

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Solution

The fourth proportional to 12,811.98, 19,217.97 and 5,023.02 is: 7,534.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,811.98 : 19,217.97 = 5,023.02 : x
  2. Step 2: Convert to fraction form
    12,811.98/19,217.97 = 5,023.02/x
  3. Step 3: Cross multiply
    12,811.98x = 19,217.97 × 5,023.02
  4. Step 4: Simplify right side
    12,811.98x = 96,532,247.67
  5. Step 5: Solve for x
    x = 96,532,247.67/12,811.98
  6. Step 6: Final answer
    x = 7,534.53

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Similar ratio
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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.