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Finding the Fourth Proportional to 16,273.56, 22,457.46 and 8,821.56

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Solution

The fourth proportional to 16,273.56, 22,457.46 and 8,821.56 is: 12,173.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,273.56 : 22,457.46 = 8,821.56 : x
  2. Step 2: Convert to fraction form
    16,273.56/22,457.46 = 8,821.56/x
  3. Step 3: Cross multiply
    16,273.56x = 22,457.46 × 8,821.56
  4. Step 4: Simplify right side
    16,273.56x = 198,109,830.84
  5. Step 5: Solve for x
    x = 198,109,830.84/16,273.56
  6. Step 6: Final answer
    x = 12,173.72

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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.