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Finding the Fourth Proportional to 14,955.33, 20,619.19 and 12,256.62

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Solution

The fourth proportional to 14,955.33, 20,619.19 and 12,256.62 is: 16,898.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,955.33 : 20,619.19 = 12,256.62 : x
  2. Step 2: Convert to fraction form
    14,955.33/20,619.19 = 12,256.62/x
  3. Step 3: Cross multiply
    14,955.33x = 20,619.19 × 12,256.62
  4. Step 4: Simplify right side
    14,955.33x = 252,721,514.54
  5. Step 5: Solve for x
    x = 252,721,514.54/14,955.33
  6. Step 6: Final answer
    x = 16,898.42

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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.