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Finding the Fourth Proportional to 18,401.32, 27,583.98 and 7,304.32

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Solution

The fourth proportional to 18,401.32, 27,583.98 and 7,304.32 is: 10,949.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,401.32 : 27,583.98 = 7,304.32 : x
  2. Step 2: Convert to fraction form
    18,401.32/27,583.98 = 7,304.32/x
  3. Step 3: Cross multiply
    18,401.32x = 27,583.98 × 7,304.32
  4. Step 4: Simplify right side
    18,401.32x = 201,482,216.79
  5. Step 5: Solve for x
    x = 201,482,216.79/18,401.32
  6. Step 6: Final answer
    x = 10,949.33

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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.