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Finding the Fourth Proportional to 13,673.74, 20,495.96 and 9,766.30

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Solution

The fourth proportional to 13,673.74, 20,495.96 and 9,766.30 is: 14,638.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,673.74 : 20,495.96 = 9,766.30 : x
  2. Step 2: Convert to fraction form
    13,673.74/20,495.96 = 9,766.30/x
  3. Step 3: Cross multiply
    13,673.74x = 20,495.96 × 9,766.30
  4. Step 4: Simplify right side
    13,673.74x = 200,169,694.15
  5. Step 5: Solve for x
    x = 200,169,694.15/13,673.74
  6. Step 6: Final answer
    x = 14,638.99

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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.