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Finding the Fourth Proportional to 3,551.60, 5,315.16 and 2,448.56

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Solution

The fourth proportional to 3,551.60, 5,315.16 and 2,448.56 is: 3,664.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.60 : 5,315.16 = 2,448.56 : x
  2. Step 2: Convert to fraction form
    3,551.60/5,315.16 = 2,448.56/x
  3. Step 3: Cross multiply
    3,551.60x = 5,315.16 × 2,448.56
  4. Step 4: Simplify right side
    3,551.60x = 13,014,488.17
  5. Step 5: Solve for x
    x = 13,014,488.17/3,551.60
  6. Step 6: Final answer
    x = 3,664.40

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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.