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Finding the Fourth Proportional to 14,995.63, 20,693.97 and 8,371.63

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Solution

The fourth proportional to 14,995.63, 20,693.97 and 8,371.63 is: 11,552.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,995.63 : 20,693.97 = 8,371.63 : x
  2. Step 2: Convert to fraction form
    14,995.63/20,693.97 = 8,371.63/x
  3. Step 3: Cross multiply
    14,995.63x = 20,693.97 × 8,371.63
  4. Step 4: Simplify right side
    14,995.63x = 173,242,114.74
  5. Step 5: Solve for x
    x = 173,242,114.74/14,995.63
  6. Step 6: Final answer
    x = 11,552.84

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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.