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Finding the Fourth Proportional to 32,120.76, 48,181.74 and 8,747.80

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Solution

The fourth proportional to 32,120.76, 48,181.74 and 8,747.80 is: 13,121.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,120.76 : 48,181.74 = 8,747.80 : x
  2. Step 2: Convert to fraction form
    32,120.76/48,181.74 = 8,747.80/x
  3. Step 3: Cross multiply
    32,120.76x = 48,181.74 × 8,747.80
  4. Step 4: Simplify right side
    32,120.76x = 421,484,225.17
  5. Step 5: Solve for x
    x = 421,484,225.17/32,120.76
  6. Step 6: Final answer
    x = 13,121.86

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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.