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Finding the Fourth Proportional to 3,605.87, 5,405.60 and 1,416.13

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Solution

The fourth proportional to 3,605.87, 5,405.60 and 1,416.13 is: 2,122.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,605.87 : 5,405.60 = 1,416.13 : x
  2. Step 2: Convert to fraction form
    3,605.87/5,405.60 = 1,416.13/x
  3. Step 3: Cross multiply
    3,605.87x = 5,405.60 × 1,416.13
  4. Step 4: Simplify right side
    3,605.87x = 7,655,022.35
  5. Step 5: Solve for x
    x = 7,655,022.35/3,605.87
  6. Step 6: Final answer
    x = 2,122.93

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.