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Finding the Fourth Proportional to 4,984.79, 7,468.98 and 3,951.43

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Solution

The fourth proportional to 4,984.79, 7,468.98 and 3,951.43 is: 5,920.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,984.79 : 7,468.98 = 3,951.43 : x
  2. Step 2: Convert to fraction form
    4,984.79/7,468.98 = 3,951.43/x
  3. Step 3: Cross multiply
    4,984.79x = 7,468.98 × 3,951.43
  4. Step 4: Simplify right side
    4,984.79x = 29,513,094.54
  5. Step 5: Solve for x
    x = 29,513,094.54/4,984.79
  6. Step 6: Final answer
    x = 5,920.64

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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.