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Finding the Fourth Proportional to 5,201.64, 7,787.88 and 4,793.40

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Solution

The fourth proportional to 5,201.64, 7,787.88 and 4,793.40 is: 7,176.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,201.64 : 7,787.88 = 4,793.40 : x
  2. Step 2: Convert to fraction form
    5,201.64/7,787.88 = 4,793.40/x
  3. Step 3: Cross multiply
    5,201.64x = 7,787.88 × 4,793.40
  4. Step 4: Simplify right side
    5,201.64x = 37,330,423.99
  5. Step 5: Solve for x
    x = 37,330,423.99/5,201.64
  6. Step 6: Final answer
    x = 7,176.66

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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.