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Finding the Fourth Proportional to 14,550.40, 21,813.81 and 4,550.00

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Solution

The fourth proportional to 14,550.40, 21,813.81 and 4,550.00 is: 6,821.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,550.40 : 21,813.81 = 4,550.00 : x
  2. Step 2: Convert to fraction form
    14,550.40/21,813.81 = 4,550.00/x
  3. Step 3: Cross multiply
    14,550.40x = 21,813.81 × 4,550.00
  4. Step 4: Simplify right side
    14,550.40x = 99,252,726.43
  5. Step 5: Solve for x
    x = 99,252,726.43/14,550.40
  6. Step 6: Final answer
    x = 6,821.31

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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.