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Finding the Fourth Proportional to 26,887.48, 40,324.68 and 8,419.48

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Solution

The fourth proportional to 26,887.48, 40,324.68 and 8,419.48 is: 12,627.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,887.48 : 40,324.68 = 8,419.48 : x
  2. Step 2: Convert to fraction form
    26,887.48/40,324.68 = 8,419.48/x
  3. Step 3: Cross multiply
    26,887.48x = 40,324.68 × 8,419.48
  4. Step 4: Simplify right side
    26,887.48x = 339,512,836.77
  5. Step 5: Solve for x
    x = 339,512,836.77/26,887.48
  6. Step 6: Final answer
    x = 12,627.17

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1.5x scale

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.