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Finding the Fourth Proportional to 12,236.57, 16,889.19 and 6,934.31

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Solution

The fourth proportional to 12,236.57, 16,889.19 and 6,934.31 is: 9,570.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,236.57 : 16,889.19 = 6,934.31 : x
  2. Step 2: Convert to fraction form
    12,236.57/16,889.19 = 6,934.31/x
  3. Step 3: Cross multiply
    12,236.57x = 16,889.19 × 6,934.31
  4. Step 4: Simplify right side
    12,236.57x = 117,114,895.33
  5. Step 5: Solve for x
    x = 117,114,895.33/12,236.57
  6. Step 6: Final answer
    x = 9,570.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.