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Finding the Fourth Proportional to 46,676.36, 70,043.70 and 18,974.36

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Solution

The fourth proportional to 46,676.36, 70,043.70 and 18,974.36 is: 28,473.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,676.36 : 70,043.70 = 18,974.36 : x
  2. Step 2: Convert to fraction form
    46,676.36/70,043.70 = 18,974.36/x
  3. Step 3: Cross multiply
    46,676.36x = 70,043.70 × 18,974.36
  4. Step 4: Simplify right side
    46,676.36x = 1,329,034,379.53
  5. Step 5: Solve for x
    x = 1,329,034,379.53/46,676.36
  6. Step 6: Final answer
    x = 28,473.39

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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.