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Finding the Fourth Proportional to 18,551.90, 25,605.48 and 17,057.45

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Solution

The fourth proportional to 18,551.90, 25,605.48 and 17,057.45 is: 23,542.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,551.90 : 25,605.48 = 17,057.45 : x
  2. Step 2: Convert to fraction form
    18,551.90/25,605.48 = 17,057.45/x
  3. Step 3: Cross multiply
    18,551.90x = 25,605.48 × 17,057.45
  4. Step 4: Simplify right side
    18,551.90x = 436,764,194.83
  5. Step 5: Solve for x
    x = 436,764,194.83/18,551.90
  6. Step 6: Final answer
    x = 23,542.83

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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.