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Finding the Fourth Proportional to 14,673.69, 20,249.55 and 7,959.29

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Solution

The fourth proportional to 14,673.69, 20,249.55 and 7,959.29 is: 10,983.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,673.69 : 20,249.55 = 7,959.29 : x
  2. Step 2: Convert to fraction form
    14,673.69/20,249.55 = 7,959.29/x
  3. Step 3: Cross multiply
    14,673.69x = 20,249.55 × 7,959.29
  4. Step 4: Simplify right side
    14,673.69x = 161,171,939.57
  5. Step 5: Solve for x
    x = 161,171,939.57/14,673.69
  6. Step 6: Final answer
    x = 10,983.74

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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.