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Finding the Fourth Proportional to 14,425.26, 19,903.80 and 8,763

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Solution

The fourth proportional to 14,425.26, 19,903.80 and 8,763 is: 12,091.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,425.26 : 19,903.80 = 8,763 : x
  2. Step 2: Convert to fraction form
    14,425.26/19,903.80 = 8,763/x
  3. Step 3: Cross multiply
    14,425.26x = 19,903.80 × 8,763
  4. Step 4: Simplify right side
    14,425.26x = 174,416,999.40
  5. Step 5: Solve for x
    x = 174,416,999.40/14,425.26
  6. Step 6: Final answer
    x = 12,091.08

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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.