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Finding the Fourth Proportional to 47,067.63, 70,615.26 and 18,973.26

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Solution

The fourth proportional to 47,067.63, 70,615.26 and 18,973.26 is: 28,465.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,067.63 : 70,615.26 = 18,973.26 : x
  2. Step 2: Convert to fraction form
    47,067.63/70,615.26 = 18,973.26/x
  3. Step 3: Cross multiply
    47,067.63x = 70,615.26 × 18,973.26
  4. Step 4: Simplify right side
    47,067.63x = 1,339,801,687.95
  5. Step 5: Solve for x
    x = 1,339,801,687.95/47,067.63
  6. Step 6: Final answer
    x = 28,465.46

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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.