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Finding the Fourth Proportional to 46,660.36, 70,019.70 and 18,958.36

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Solution

The fourth proportional to 46,660.36, 70,019.70 and 18,958.36 is: 28,449.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,660.36 : 70,019.70 = 18,958.36 : x
  2. Step 2: Convert to fraction form
    46,660.36/70,019.70 = 18,958.36/x
  3. Step 3: Cross multiply
    46,660.36x = 70,019.70 × 18,958.36
  4. Step 4: Simplify right side
    46,660.36x = 1,327,458,679.69
  5. Step 5: Solve for x
    x = 1,327,458,679.69/46,660.36
  6. Step 6: Final answer
    x = 28,449.39

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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.