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Finding the Fourth Proportional to 47,059.70, 70,603.37 and 18,965.29

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Solution

The fourth proportional to 47,059.70, 70,603.37 and 18,965.29 is: 28,453.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,059.70 : 70,603.37 = 18,965.29 : x
  2. Step 2: Convert to fraction form
    47,059.70/70,603.37 = 18,965.29/x
  3. Step 3: Cross multiply
    47,059.70x = 70,603.37 × 18,965.29
  4. Step 4: Simplify right side
    47,059.70x = 1,339,013,292.20
  5. Step 5: Solve for x
    x = 1,339,013,292.20/47,059.70
  6. Step 6: Final answer
    x = 28,453.51

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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.