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Finding the Fourth Proportional to 32,352.60, 48,509.10 and 12,608.40

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Solution

The fourth proportional to 32,352.60, 48,509.10 and 12,608.40 is: 18,904.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,352.60 : 48,509.10 = 12,608.40 : x
  2. Step 2: Convert to fraction form
    32,352.60/48,509.10 = 12,608.40/x
  3. Step 3: Cross multiply
    32,352.60x = 48,509.10 × 12,608.40
  4. Step 4: Simplify right side
    32,352.60x = 611,622,136.44
  5. Step 5: Solve for x
    x = 611,622,136.44/32,352.60
  6. Step 6: Final answer
    x = 18,904.88

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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.