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Finding the Fourth Proportional to 18,535.55, 25,580.14 and 10,580.33

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Solution

The fourth proportional to 18,535.55, 25,580.14 and 10,580.33 is: 14,601.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,535.55 : 25,580.14 = 10,580.33 : x
  2. Step 2: Convert to fraction form
    18,535.55/25,580.14 = 10,580.33/x
  3. Step 3: Cross multiply
    18,535.55x = 25,580.14 × 10,580.33
  4. Step 4: Simplify right side
    18,535.55x = 270,646,360.15
  5. Step 5: Solve for x
    x = 270,646,360.15/18,535.55
  6. Step 6: Final answer
    x = 14,601.48

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.