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Finding the Fourth Proportional to 14,883.54, 20,539.89 and 8,914.02

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Solution

The fourth proportional to 14,883.54, 20,539.89 and 8,914.02 is: 12,301.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,883.54 : 20,539.89 = 8,914.02 : x
  2. Step 2: Convert to fraction form
    14,883.54/20,539.89 = 8,914.02/x
  3. Step 3: Cross multiply
    14,883.54x = 20,539.89 × 8,914.02
  4. Step 4: Simplify right side
    14,883.54x = 183,092,990.26
  5. Step 5: Solve for x
    x = 183,092,990.26/14,883.54
  6. Step 6: Final answer
    x = 12,301.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.