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Finding the Fourth Proportional to 8,610.70, 12,894.45 and 5,673.10

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Solution

The fourth proportional to 8,610.70, 12,894.45 and 5,673.10 is: 8,495.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,610.70 : 12,894.45 = 5,673.10 : x
  2. Step 2: Convert to fraction form
    8,610.70/12,894.45 = 5,673.10/x
  3. Step 3: Cross multiply
    8,610.70x = 12,894.45 × 5,673.10
  4. Step 4: Simplify right side
    8,610.70x = 73,151,504.30
  5. Step 5: Solve for x
    x = 73,151,504.30/8,610.70
  6. Step 6: Final answer
    x = 8,495.42

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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.