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Finding the Fourth Proportional to 45,791.19, 68,686.79 and 14,628.87

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Solution

The fourth proportional to 45,791.19, 68,686.79 and 14,628.87 is: 21,943.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,791.19 : 68,686.79 = 14,628.87 : x
  2. Step 2: Convert to fraction form
    45,791.19/68,686.79 = 14,628.87/x
  3. Step 3: Cross multiply
    45,791.19x = 68,686.79 × 14,628.87
  4. Step 4: Simplify right side
    45,791.19x = 1,004,810,048.48
  5. Step 5: Solve for x
    x = 1,004,810,048.48/45,791.19
  6. Step 6: Final answer
    x = 21,943.31

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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.