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Finding the Fourth Proportional to 18,317, 25,281.24 and 10,359.56

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Solution

The fourth proportional to 18,317, 25,281.24 and 10,359.56 is: 14,298.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,317 : 25,281.24 = 10,359.56 : x
  2. Step 2: Convert to fraction form
    18,317/25,281.24 = 10,359.56/x
  3. Step 3: Cross multiply
    18,317x = 25,281.24 × 10,359.56
  4. Step 4: Simplify right side
    18,317x = 261,902,522.65
  5. Step 5: Solve for x
    x = 261,902,522.65/18,317
  6. Step 6: Final answer
    x = 14,298.33

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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.