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Finding the Fourth Proportional to 3,157.96, 4,737.65 and 1,077.88

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Solution

The fourth proportional to 3,157.96, 4,737.65 and 1,077.88 is: 1,617.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.96 : 4,737.65 = 1,077.88 : x
  2. Step 2: Convert to fraction form
    3,157.96/4,737.65 = 1,077.88/x
  3. Step 3: Cross multiply
    3,157.96x = 4,737.65 × 1,077.88
  4. Step 4: Simplify right side
    3,157.96x = 5,106,618.18
  5. Step 5: Solve for x
    x = 5,106,618.18/3,157.96
  6. Step 6: Final answer
    x = 1,617.06

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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.