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Finding the Fourth Proportional to 46,661.46, 70,021.23 and 18,959.46

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Solution

The fourth proportional to 46,661.46, 70,021.23 and 18,959.46 is: 28,450.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,661.46 : 70,021.23 = 18,959.46 : x
  2. Step 2: Convert to fraction form
    46,661.46/70,021.23 = 18,959.46/x
  3. Step 3: Cross multiply
    46,661.46x = 70,021.23 × 18,959.46
  4. Step 4: Simplify right side
    46,661.46x = 1,327,564,709.34
  5. Step 5: Solve for x
    x = 1,327,564,709.34/46,661.46
  6. Step 6: Final answer
    x = 28,450.99

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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.