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Finding the Fourth Proportional to 17,018.71, 25,530.78 and 5,928.55

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Solution

The fourth proportional to 17,018.71, 25,530.78 and 5,928.55 is: 8,893.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,018.71 : 25,530.78 = 5,928.55 : x
  2. Step 2: Convert to fraction form
    17,018.71/25,530.78 = 5,928.55/x
  3. Step 3: Cross multiply
    17,018.71x = 25,530.78 × 5,928.55
  4. Step 4: Simplify right side
    17,018.71x = 151,360,505.77
  5. Step 5: Solve for x
    x = 151,360,505.77/17,018.71
  6. Step 6: Final answer
    x = 8,893.77

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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.