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Finding the Fourth Proportional to 3,557.10, 5,335.65 and 960.03

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Solution

The fourth proportional to 3,557.10, 5,335.65 and 960.03 is: 1,440.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,557.10 : 5,335.65 = 960.03 : x
  2. Step 2: Convert to fraction form
    3,557.10/5,335.65 = 960.03/x
  3. Step 3: Cross multiply
    3,557.10x = 5,335.65 × 960.03
  4. Step 4: Simplify right side
    3,557.10x = 5,122,400.48
  5. Step 5: Solve for x
    x = 5,122,400.48/3,557.10
  6. Step 6: Final answer
    x = 1,440.05

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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.