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Finding the Fourth Proportional to 3,802.27, 5,703.95 and 1,170

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Solution

The fourth proportional to 3,802.27, 5,703.95 and 1,170 is: 1,755.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,802.27 : 5,703.95 = 1,170 : x
  2. Step 2: Convert to fraction form
    3,802.27/5,703.95 = 1,170/x
  3. Step 3: Cross multiply
    3,802.27x = 5,703.95 × 1,170
  4. Step 4: Simplify right side
    3,802.27x = 6,673,621.50
  5. Step 5: Solve for x
    x = 6,673,621.50/3,802.27
  6. Step 6: Final answer
    x = 1,755.17

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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.