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Finding the Fourth Proportional to 32,520.60, 48,787.65 and 12,529.80

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Solution

The fourth proportional to 32,520.60, 48,787.65 and 12,529.80 is: 18,797.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,520.60 : 48,787.65 = 12,529.80 : x
  2. Step 2: Convert to fraction form
    32,520.60/48,787.65 = 12,529.80/x
  3. Step 3: Cross multiply
    32,520.60x = 48,787.65 × 12,529.80
  4. Step 4: Simplify right side
    32,520.60x = 611,299,496.97
  5. Step 5: Solve for x
    x = 611,299,496.97/32,520.60
  6. Step 6: Final answer
    x = 18,797.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.