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Finding the Fourth Proportional to 29,479.97, 44,212.16 and 20,118.31

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Solution

The fourth proportional to 29,479.97, 44,212.16 and 20,118.31 is: 30,172.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,479.97 : 44,212.16 = 20,118.31 : x
  2. Step 2: Convert to fraction form
    29,479.97/44,212.16 = 20,118.31/x
  3. Step 3: Cross multiply
    29,479.97x = 44,212.16 × 20,118.31
  4. Step 4: Simplify right side
    29,479.97x = 889,473,880.41
  5. Step 5: Solve for x
    x = 889,473,880.41/29,479.97
  6. Step 6: Final answer
    x = 30,172.14

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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.