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Finding the Fourth Proportional to 32,787.92, 45,245.72 and 18,640.46

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Solution

The fourth proportional to 32,787.92, 45,245.72 and 18,640.46 is: 25,722.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,787.92 : 45,245.72 = 18,640.46 : x
  2. Step 2: Convert to fraction form
    32,787.92/45,245.72 = 18,640.46/x
  3. Step 3: Cross multiply
    32,787.92x = 45,245.72 × 18,640.46
  4. Step 4: Simplify right side
    32,787.92x = 843,400,854.20
  5. Step 5: Solve for x
    x = 843,400,854.20/32,787.92
  6. Step 6: Final answer
    x = 25,722.92

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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.