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Finding the Fourth Proportional to 19,193.28, 28,780.08 and 8,796

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Solution

The fourth proportional to 19,193.28, 28,780.08 and 8,796 is: 13,189.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,193.28 : 28,780.08 = 8,796 : x
  2. Step 2: Convert to fraction form
    19,193.28/28,780.08 = 8,796/x
  3. Step 3: Cross multiply
    19,193.28x = 28,780.08 × 8,796
  4. Step 4: Simplify right side
    19,193.28x = 253,149,583.68
  5. Step 5: Solve for x
    x = 253,149,583.68/19,193.28
  6. Step 6: Final answer
    x = 13,189.49

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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.