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Finding the Fourth Proportional to 32,611.60, 48,787.80 and 28,277.20

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Solution

The fourth proportional to 32,611.60, 48,787.80 and 28,277.20 is: 42,303.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,611.60 : 48,787.80 = 28,277.20 : x
  2. Step 2: Convert to fraction form
    32,611.60/48,787.80 = 28,277.20/x
  3. Step 3: Cross multiply
    32,611.60x = 48,787.80 × 28,277.20
  4. Step 4: Simplify right side
    32,611.60x = 1,379,582,378.16
  5. Step 5: Solve for x
    x = 1,379,582,378.16/32,611.60
  6. Step 6: Final answer
    x = 42,303.43

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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.