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Finding the Fourth Proportional to 46,664.70, 69,920.10 and 26,908.80

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Solution

The fourth proportional to 46,664.70, 69,920.10 and 26,908.80 is: 40,318.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,664.70 : 69,920.10 = 26,908.80 : x
  2. Step 2: Convert to fraction form
    46,664.70/69,920.10 = 26,908.80/x
  3. Step 3: Cross multiply
    46,664.70x = 69,920.10 × 26,908.80
  4. Step 4: Simplify right side
    46,664.70x = 1,881,465,986.88
  5. Step 5: Solve for x
    x = 1,881,465,986.88/46,664.70
  6. Step 6: Final answer
    x = 40,318.83

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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.