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Finding the Fourth Proportional to 40,479.40, 60,621.90 and 32,703.40

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Solution

The fourth proportional to 40,479.40, 60,621.90 and 32,703.40 is: 48,976.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,479.40 : 60,621.90 = 32,703.40 : x
  2. Step 2: Convert to fraction form
    40,479.40/60,621.90 = 32,703.40/x
  3. Step 3: Cross multiply
    40,479.40x = 60,621.90 × 32,703.40
  4. Step 4: Simplify right side
    40,479.40x = 1,982,542,244.46
  5. Step 5: Solve for x
    x = 1,982,542,244.46/40,479.40
  6. Step 6: Final answer
    x = 48,976.57

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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.