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Finding the Fourth Proportional to 28,603.44, 39,471.12 and 16,029

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Solution

The fourth proportional to 28,603.44, 39,471.12 and 16,029 is: 22,119.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,603.44 : 39,471.12 = 16,029 : x
  2. Step 2: Convert to fraction form
    28,603.44/39,471.12 = 16,029/x
  3. Step 3: Cross multiply
    28,603.44x = 39,471.12 × 16,029
  4. Step 4: Simplify right side
    28,603.44x = 632,682,582.48
  5. Step 5: Solve for x
    x = 632,682,582.48/28,603.44
  6. Step 6: Final answer
    x = 22,119.11

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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.