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Finding the Fourth Proportional to 8,534.43, 12,802.19 and 3,603.42

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Solution

The fourth proportional to 8,534.43, 12,802.19 and 3,603.42 is: 5,405.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,534.43 : 12,802.19 = 3,603.42 : x
  2. Step 2: Convert to fraction form
    8,534.43/12,802.19 = 3,603.42/x
  3. Step 3: Cross multiply
    8,534.43x = 12,802.19 × 3,603.42
  4. Step 4: Simplify right side
    8,534.43x = 46,131,649.47
  5. Step 5: Solve for x
    x = 46,131,649.47/8,534.43
  6. Step 6: Final answer
    x = 5,405.36

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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.