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Finding the Fourth Proportional to 17,056.88, 25,582.55 and 12,111.56

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Solution

The fourth proportional to 17,056.88, 25,582.55 and 12,111.56 is: 18,165.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,056.88 : 25,582.55 = 12,111.56 : x
  2. Step 2: Convert to fraction form
    17,056.88/25,582.55 = 12,111.56/x
  3. Step 3: Cross multiply
    17,056.88x = 25,582.55 × 12,111.56
  4. Step 4: Simplify right side
    17,056.88x = 309,844,400.81
  5. Step 5: Solve for x
    x = 309,844,400.81/17,056.88
  6. Step 6: Final answer
    x = 18,165.37

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.