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Finding the Fourth Proportional to 3,039.25, 4,557.16 and 958.86

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Solution

The fourth proportional to 3,039.25, 4,557.16 and 958.86 is: 1,437.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,039.25 : 4,557.16 = 958.86 : x
  2. Step 2: Convert to fraction form
    3,039.25/4,557.16 = 958.86/x
  3. Step 3: Cross multiply
    3,039.25x = 4,557.16 × 958.86
  4. Step 4: Simplify right side
    3,039.25x = 4,369,692.45
  5. Step 5: Solve for x
    x = 4,369,692.45/3,039.25
  6. Step 6: Final answer
    x = 1,437.76

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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.