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Finding the Fourth Proportional to 16,708.87, 23,053.57 and 13,161.07

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Solution

The fourth proportional to 16,708.87, 23,053.57 and 13,161.07 is: 18,158.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,708.87 : 23,053.57 = 13,161.07 : x
  2. Step 2: Convert to fraction form
    16,708.87/23,053.57 = 13,161.07/x
  3. Step 3: Cross multiply
    16,708.87x = 23,053.57 × 13,161.07
  4. Step 4: Simplify right side
    16,708.87x = 303,409,648.52
  5. Step 5: Solve for x
    x = 303,409,648.52/16,708.87
  6. Step 6: Final answer
    x = 18,158.60

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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.