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Finding the Fourth Proportional to 17,113.78, 25,671.03 and 5,871.75

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Solution

The fourth proportional to 17,113.78, 25,671.03 and 5,871.75 is: 8,807.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,113.78 : 25,671.03 = 5,871.75 : x
  2. Step 2: Convert to fraction form
    17,113.78/25,671.03 = 5,871.75/x
  3. Step 3: Cross multiply
    17,113.78x = 25,671.03 × 5,871.75
  4. Step 4: Simplify right side
    17,113.78x = 150,733,870.40
  5. Step 5: Solve for x
    x = 150,733,870.40/17,113.78
  6. Step 6: Final answer
    x = 8,807.75

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Why These Related Problems?

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