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Finding the Fourth Proportional to 18,516.20, 25,552.25 and 17,010

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Solution

The fourth proportional to 18,516.20, 25,552.25 and 17,010 is: 23,473.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,516.20 : 25,552.25 = 17,010 : x
  2. Step 2: Convert to fraction form
    18,516.20/25,552.25 = 17,010/x
  3. Step 3: Cross multiply
    18,516.20x = 25,552.25 × 17,010
  4. Step 4: Simplify right side
    18,516.20x = 434,643,772.50
  5. Step 5: Solve for x
    x = 434,643,772.50/18,516.20
  6. Step 6: Final answer
    x = 23,473.70

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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.