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Finding the Fourth Proportional to 14,379.49, 21,571.36 and 7,363.47

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Solution

The fourth proportional to 14,379.49, 21,571.36 and 7,363.47 is: 11,046.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,379.49 : 21,571.36 = 7,363.47 : x
  2. Step 2: Convert to fraction form
    14,379.49/21,571.36 = 7,363.47/x
  3. Step 3: Cross multiply
    14,379.49x = 21,571.36 × 7,363.47
  4. Step 4: Simplify right side
    14,379.49x = 158,840,062.22
  5. Step 5: Solve for x
    x = 158,840,062.22/14,379.49
  6. Step 6: Final answer
    x = 11,046.29

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1.5x scale

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.