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Finding the Fourth Proportional to 15,063.96, 20,787.73 and 8,350.22

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Solution

The fourth proportional to 15,063.96, 20,787.73 and 8,350.22 is: 11,523.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,063.96 : 20,787.73 = 8,350.22 : x
  2. Step 2: Convert to fraction form
    15,063.96/20,787.73 = 8,350.22/x
  3. Step 3: Cross multiply
    15,063.96x = 20,787.73 × 8,350.22
  4. Step 4: Simplify right side
    15,063.96x = 173,582,118.80
  5. Step 5: Solve for x
    x = 173,582,118.80/15,063.96
  6. Step 6: Final answer
    x = 11,523.01

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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.