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Finding the Fourth Proportional to 4,253.55, 6,373.82 and 1,787.01

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Solution

The fourth proportional to 4,253.55, 6,373.82 and 1,787.01 is: 2,677.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,253.55 : 6,373.82 = 1,787.01 : x
  2. Step 2: Convert to fraction form
    4,253.55/6,373.82 = 1,787.01/x
  3. Step 3: Cross multiply
    4,253.55x = 6,373.82 × 1,787.01
  4. Step 4: Simplify right side
    4,253.55x = 11,390,096.50
  5. Step 5: Solve for x
    x = 11,390,096.50/4,253.55
  6. Step 6: Final answer
    x = 2,677.79

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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.