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Finding the Fourth Proportional to 18,896.81, 26,074.71 and 11,341.49

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Solution

The fourth proportional to 18,896.81, 26,074.71 and 11,341.49 is: 15,649.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,896.81 : 26,074.71 = 11,341.49 : x
  2. Step 2: Convert to fraction form
    18,896.81/26,074.71 = 11,341.49/x
  3. Step 3: Cross multiply
    18,896.81x = 26,074.71 × 11,341.49
  4. Step 4: Simplify right side
    18,896.81x = 295,725,932.34
  5. Step 5: Solve for x
    x = 295,725,932.34/18,896.81
  6. Step 6: Final answer
    x = 15,649.52

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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.