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Finding the Fourth Proportional to 46,726.80, 70,106.40 and 20,450.40

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Solution

The fourth proportional to 46,726.80, 70,106.40 and 20,450.40 is: 30,682.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,726.80 : 70,106.40 = 20,450.40 : x
  2. Step 2: Convert to fraction form
    46,726.80/70,106.40 = 20,450.40/x
  3. Step 3: Cross multiply
    46,726.80x = 70,106.40 × 20,450.40
  4. Step 4: Simplify right side
    46,726.80x = 1,433,703,922.56
  5. Step 5: Solve for x
    x = 1,433,703,922.56/46,726.80
  6. Step 6: Final answer
    x = 30,682.69

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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.