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Finding the Fourth Proportional to 8,572.44, 12,862.70 and 3,028.39

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Solution

The fourth proportional to 8,572.44, 12,862.70 and 3,028.39 is: 4,544.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,572.44 : 12,862.70 = 3,028.39 : x
  2. Step 2: Convert to fraction form
    8,572.44/12,862.70 = 3,028.39/x
  3. Step 3: Cross multiply
    8,572.44x = 12,862.70 × 3,028.39
  4. Step 4: Simplify right side
    8,572.44x = 38,953,290.38
  5. Step 5: Solve for x
    x = 38,953,290.38/8,572.44
  6. Step 6: Final answer
    x = 4,544.02

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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.