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Finding the Fourth Proportional to 18,322.88, 25,286.13 and 10,364.94

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Solution

The fourth proportional to 18,322.88, 25,286.13 and 10,364.94 is: 14,303.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,322.88 : 25,286.13 = 10,364.94 : x
  2. Step 2: Convert to fraction form
    18,322.88/25,286.13 = 10,364.94/x
  3. Step 3: Cross multiply
    18,322.88x = 25,286.13 × 10,364.94
  4. Step 4: Simplify right side
    18,322.88x = 262,089,220.28
  5. Step 5: Solve for x
    x = 262,089,220.28/18,322.88
  6. Step 6: Final answer
    x = 14,303.94

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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.