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Finding the Fourth Proportional to 33,216.32, 45,839.04 and 18,312.32

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Solution

The fourth proportional to 33,216.32, 45,839.04 and 18,312.32 is: 25,271.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,216.32 : 45,839.04 = 18,312.32 : x
  2. Step 2: Convert to fraction form
    33,216.32/45,839.04 = 18,312.32/x
  3. Step 3: Cross multiply
    33,216.32x = 45,839.04 × 18,312.32
  4. Step 4: Simplify right side
    33,216.32x = 839,419,168.97
  5. Step 5: Solve for x
    x = 839,419,168.97/33,216.32
  6. Step 6: Final answer
    x = 25,271.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.