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Finding the Fourth Proportional to 11,373.62, 17,065.62 and 5,135.28

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Solution

The fourth proportional to 11,373.62, 17,065.62 and 5,135.28 is: 7,705.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,373.62 : 17,065.62 = 5,135.28 : x
  2. Step 2: Convert to fraction form
    11,373.62/17,065.62 = 5,135.28/x
  3. Step 3: Cross multiply
    11,373.62x = 17,065.62 × 5,135.28
  4. Step 4: Simplify right side
    11,373.62x = 87,636,737.07
  5. Step 5: Solve for x
    x = 87,636,737.07/11,373.62
  6. Step 6: Final answer
    x = 7,705.26

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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.