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Finding the Fourth Proportional to 3,957.55, 5,931.46 and 2,222.53

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Solution

The fourth proportional to 3,957.55, 5,931.46 and 2,222.53 is: 3,331.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.55 : 5,931.46 = 2,222.53 : x
  2. Step 2: Convert to fraction form
    3,957.55/5,931.46 = 2,222.53/x
  3. Step 3: Cross multiply
    3,957.55x = 5,931.46 × 2,222.53
  4. Step 4: Simplify right side
    3,957.55x = 13,182,847.79
  5. Step 5: Solve for x
    x = 13,182,847.79/3,957.55
  6. Step 6: Final answer
    x = 3,331.06

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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.