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Finding the Fourth Proportional to 18,476, 25,497.96 and 10,518.56

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Solution

The fourth proportional to 18,476, 25,497.96 and 10,518.56 is: 14,516.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,476 : 25,497.96 = 10,518.56 : x
  2. Step 2: Convert to fraction form
    18,476/25,497.96 = 10,518.56/x
  3. Step 3: Cross multiply
    18,476x = 25,497.96 × 10,518.56
  4. Step 4: Simplify right side
    18,476x = 268,201,822.14
  5. Step 5: Solve for x
    x = 268,201,822.14/18,476
  6. Step 6: Final answer
    x = 14,516.23

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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.