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Finding the Fourth Proportional to 14,873.45, 20,525.88 and 8,159.09

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Solution

The fourth proportional to 14,873.45, 20,525.88 and 8,159.09 is: 11,259.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,873.45 : 20,525.88 = 8,159.09 : x
  2. Step 2: Convert to fraction form
    14,873.45/20,525.88 = 8,159.09/x
  3. Step 3: Cross multiply
    14,873.45x = 20,525.88 × 8,159.09
  4. Step 4: Simplify right side
    14,873.45x = 167,472,399.62
  5. Step 5: Solve for x
    x = 167,472,399.62/14,873.45
  6. Step 6: Final answer
    x = 11,259.83

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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.