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Finding the Fourth Proportional to 12,892.58, 19,250.67 and 11,549.71

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Solution

The fourth proportional to 12,892.58, 19,250.67 and 11,549.71 is: 17,245.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,892.58 : 19,250.67 = 11,549.71 : x
  2. Step 2: Convert to fraction form
    12,892.58/19,250.67 = 11,549.71/x
  3. Step 3: Cross multiply
    12,892.58x = 19,250.67 × 11,549.71
  4. Step 4: Simplify right side
    12,892.58x = 222,339,582.41
  5. Step 5: Solve for x
    x = 222,339,582.41/12,892.58
  6. Step 6: Final answer
    x = 17,245.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.