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Finding the Fourth Proportional to 32,468.60, 48,674.10 and 12,740.60

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Solution

The fourth proportional to 32,468.60, 48,674.10 and 12,740.60 is: 19,099.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,468.60 : 48,674.10 = 12,740.60 : x
  2. Step 2: Convert to fraction form
    32,468.60/48,674.10 = 12,740.60/x
  3. Step 3: Cross multiply
    32,468.60x = 48,674.10 × 12,740.60
  4. Step 4: Simplify right side
    32,468.60x = 620,137,238.46
  5. Step 5: Solve for x
    x = 620,137,238.46/32,468.60
  6. Step 6: Final answer
    x = 19,099.60

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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.