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Finding the Fourth Proportional to 4,984.28, 7,484.32 and 3,580.96

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Solution

The fourth proportional to 4,984.28, 7,484.32 and 3,580.96 is: 5,377.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,984.28 : 7,484.32 = 3,580.96 : x
  2. Step 2: Convert to fraction form
    4,984.28/7,484.32 = 3,580.96/x
  3. Step 3: Cross multiply
    4,984.28x = 7,484.32 × 3,580.96
  4. Step 4: Simplify right side
    4,984.28x = 26,801,050.55
  5. Step 5: Solve for x
    x = 26,801,050.55/4,984.28
  6. Step 6: Final answer
    x = 5,377.12

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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.