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Finding the Fourth Proportional to 36,688.80, 55,033.20 and 32,995.20

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Solution

The fourth proportional to 36,688.80, 55,033.20 and 32,995.20 is: 49,492.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,688.80 : 55,033.20 = 32,995.20 : x
  2. Step 2: Convert to fraction form
    36,688.80/55,033.20 = 32,995.20/x
  3. Step 3: Cross multiply
    36,688.80x = 55,033.20 × 32,995.20
  4. Step 4: Simplify right side
    36,688.80x = 1,815,831,440.64
  5. Step 5: Solve for x
    x = 1,815,831,440.64/36,688.80
  6. Step 6: Final answer
    x = 49,492.80

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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.