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Finding the Fourth Proportional to 17,948.50, 26,923.84 and 5,636.50

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Solution

The fourth proportional to 17,948.50, 26,923.84 and 5,636.50 is: 8,455.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,948.50 : 26,923.84 = 5,636.50 : x
  2. Step 2: Convert to fraction form
    17,948.50/26,923.84 = 5,636.50/x
  3. Step 3: Cross multiply
    17,948.50x = 26,923.84 × 5,636.50
  4. Step 4: Simplify right side
    17,948.50x = 151,756,224.16
  5. Step 5: Solve for x
    x = 151,756,224.16/17,948.50
  6. Step 6: Final answer
    x = 8,455.09

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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.