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Finding the Fourth Proportional to 26,658.48, 39,984.96 and 8,887.22

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Solution

The fourth proportional to 26,658.48, 39,984.96 and 8,887.22 is: 13,329.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,658.48 : 39,984.96 = 8,887.22 : x
  2. Step 2: Convert to fraction form
    26,658.48/39,984.96 = 8,887.22/x
  3. Step 3: Cross multiply
    26,658.48x = 39,984.96 × 8,887.22
  4. Step 4: Simplify right side
    26,658.48x = 355,354,936.29
  5. Step 5: Solve for x
    x = 355,354,936.29/26,658.48
  6. Step 6: Final answer
    x = 13,329.90

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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.