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Finding the Fourth Proportional to 14,877.19, 20,531.65 and 8,504.04

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Solution

The fourth proportional to 14,877.19, 20,531.65 and 8,504.04 is: 11,736.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,877.19 : 20,531.65 = 8,504.04 : x
  2. Step 2: Convert to fraction form
    14,877.19/20,531.65 = 8,504.04/x
  3. Step 3: Cross multiply
    14,877.19x = 20,531.65 × 8,504.04
  4. Step 4: Simplify right side
    14,877.19x = 174,601,952.97
  5. Step 5: Solve for x
    x = 174,601,952.97/14,877.19
  6. Step 6: Final answer
    x = 11,736.22

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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.