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Finding the Fourth Proportional to 17,676.20, 26,513.70 and 4,528.70

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Solution

The fourth proportional to 17,676.20, 26,513.70 and 4,528.70 is: 6,792.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,676.20 : 26,513.70 = 4,528.70 : x
  2. Step 2: Convert to fraction form
    17,676.20/26,513.70 = 4,528.70/x
  3. Step 3: Cross multiply
    17,676.20x = 26,513.70 × 4,528.70
  4. Step 4: Simplify right side
    17,676.20x = 120,072,593.19
  5. Step 5: Solve for x
    x = 120,072,593.19/17,676.20
  6. Step 6: Final answer
    x = 6,792.90

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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.