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Finding the Fourth Proportional to 16,803.71, 25,221.13 and 8,489.58

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Solution

The fourth proportional to 16,803.71, 25,221.13 and 8,489.58 is: 12,742.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,803.71 : 25,221.13 = 8,489.58 : x
  2. Step 2: Convert to fraction form
    16,803.71/25,221.13 = 8,489.58/x
  3. Step 3: Cross multiply
    16,803.71x = 25,221.13 × 8,489.58
  4. Step 4: Simplify right side
    16,803.71x = 214,116,763.68
  5. Step 5: Solve for x
    x = 214,116,763.68/16,803.71
  6. Step 6: Final answer
    x = 12,742.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.