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Finding the Fourth Proportional to 17,190.63, 25,787.03 and 5,503.01

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Solution

The fourth proportional to 17,190.63, 25,787.03 and 5,503.01 is: 8,254.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,190.63 : 25,787.03 = 5,503.01 : x
  2. Step 2: Convert to fraction form
    17,190.63/25,787.03 = 5,503.01/x
  3. Step 3: Cross multiply
    17,190.63x = 25,787.03 × 5,503.01
  4. Step 4: Simplify right side
    17,190.63x = 141,906,127.51
  5. Step 5: Solve for x
    x = 141,906,127.51/17,190.63
  6. Step 6: Final answer
    x = 8,254.85

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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.