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Finding the Fourth Proportional to 32,660.75, 48,984.96 and 12,670.20

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Solution

The fourth proportional to 32,660.75, 48,984.96 and 12,670.20 is: 19,002.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,660.75 : 48,984.96 = 12,670.20 : x
  2. Step 2: Convert to fraction form
    32,660.75/48,984.96 = 12,670.20/x
  3. Step 3: Cross multiply
    32,660.75x = 48,984.96 × 12,670.20
  4. Step 4: Simplify right side
    32,660.75x = 620,649,287.71
  5. Step 5: Solve for x
    x = 620,649,287.71/32,660.75
  6. Step 6: Final answer
    x = 19,002.91

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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.