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Finding the Fourth Proportional to 18,804.42, 25,940.70 and 14,583.42

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Solution

The fourth proportional to 18,804.42, 25,940.70 and 14,583.42 is: 20,117.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,804.42 : 25,940.70 = 14,583.42 : x
  2. Step 2: Convert to fraction form
    18,804.42/25,940.70 = 14,583.42/x
  3. Step 3: Cross multiply
    18,804.42x = 25,940.70 × 14,583.42
  4. Step 4: Simplify right side
    18,804.42x = 378,304,123.19
  5. Step 5: Solve for x
    x = 378,304,123.19/18,804.42
  6. Step 6: Final answer
    x = 20,117.83

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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.