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Finding the Fourth Proportional to 32,787.92, 45,247.56 and 18,639.92

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Solution

The fourth proportional to 32,787.92, 45,247.56 and 18,639.92 is: 25,723.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,787.92 : 45,247.56 = 18,639.92 : x
  2. Step 2: Convert to fraction form
    32,787.92/45,247.56 = 18,639.92/x
  3. Step 3: Cross multiply
    32,787.92x = 45,247.56 × 18,639.92
  4. Step 4: Simplify right side
    32,787.92x = 843,410,898.60
  5. Step 5: Solve for x
    x = 843,410,898.60/32,787.92
  6. Step 6: Final answer
    x = 25,723.22

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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.