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Finding the Fourth Proportional to 16,996.50, 25,505.55 and 8,788.50

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Solution

The fourth proportional to 16,996.50, 25,505.55 and 8,788.50 is: 13,188.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,996.50 : 25,505.55 = 8,788.50 : x
  2. Step 2: Convert to fraction form
    16,996.50/25,505.55 = 8,788.50/x
  3. Step 3: Cross multiply
    16,996.50x = 25,505.55 × 8,788.50
  4. Step 4: Simplify right side
    16,996.50x = 224,155,526.18
  5. Step 5: Solve for x
    x = 224,155,526.18/16,996.50
  6. Step 6: Final answer
    x = 13,188.33

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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.