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Finding the Fourth Proportional to 8,606.48, 12,887.84 and 5,675.90

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Solution

The fourth proportional to 8,606.48, 12,887.84 and 5,675.90 is: 8,499.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,606.48 : 12,887.84 = 5,675.90 : x
  2. Step 2: Convert to fraction form
    8,606.48/12,887.84 = 5,675.90/x
  3. Step 3: Cross multiply
    8,606.48x = 12,887.84 × 5,675.90
  4. Step 4: Simplify right side
    8,606.48x = 73,150,091.06
  5. Step 5: Solve for x
    x = 73,150,091.06/8,606.48
  6. Step 6: Final answer
    x = 8,499.42

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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.