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Finding the Fourth Proportional to 3,710.81, 5,566.22 and 1,402.31

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Solution

The fourth proportional to 3,710.81, 5,566.22 and 1,402.31 is: 2,103.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,710.81 : 5,566.22 = 1,402.31 : x
  2. Step 2: Convert to fraction form
    3,710.81/5,566.22 = 1,402.31/x
  3. Step 3: Cross multiply
    3,710.81x = 5,566.22 × 1,402.31
  4. Step 4: Simplify right side
    3,710.81x = 7,805,578.13
  5. Step 5: Solve for x
    x = 7,805,578.13/3,710.81
  6. Step 6: Final answer
    x = 2,103.47

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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.