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Finding the Fourth Proportional to 26,224.50, 39,343.41 and 7,756.50

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Solution

The fourth proportional to 26,224.50, 39,343.41 and 7,756.50 is: 11,636.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,224.50 : 39,343.41 = 7,756.50 : x
  2. Step 2: Convert to fraction form
    26,224.50/39,343.41 = 7,756.50/x
  3. Step 3: Cross multiply
    26,224.50x = 39,343.41 × 7,756.50
  4. Step 4: Simplify right side
    26,224.50x = 305,167,159.67
  5. Step 5: Solve for x
    x = 305,167,159.67/26,224.50
  6. Step 6: Final answer
    x = 11,636.72

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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.