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Finding the Fourth Proportional to 18,297.68, 25,252.08 and 10,340.64

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Solution

The fourth proportional to 18,297.68, 25,252.08 and 10,340.64 is: 14,270.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,297.68 : 25,252.08 = 10,340.64 : x
  2. Step 2: Convert to fraction form
    18,297.68/25,252.08 = 10,340.64/x
  3. Step 3: Cross multiply
    18,297.68x = 25,252.08 × 10,340.64
  4. Step 4: Simplify right side
    18,297.68x = 261,122,668.53
  5. Step 5: Solve for x
    x = 261,122,668.53/18,297.68
  6. Step 6: Final answer
    x = 14,270.81

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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.