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Finding the Fourth Proportional to 16,457.13, 22,710.81 and 8,903.43

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Solution

The fourth proportional to 16,457.13, 22,710.81 and 8,903.43 is: 12,286.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,457.13 : 22,710.81 = 8,903.43 : x
  2. Step 2: Convert to fraction form
    16,457.13/22,710.81 = 8,903.43/x
  3. Step 3: Cross multiply
    16,457.13x = 22,710.81 × 8,903.43
  4. Step 4: Simplify right side
    16,457.13x = 202,204,179.30
  5. Step 5: Solve for x
    x = 202,204,179.30/16,457.13
  6. Step 6: Final answer
    x = 12,286.72

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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.