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Finding the Fourth Proportional to 2,308.74, 3,463.08 and 847.32

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Solution

The fourth proportional to 2,308.74, 3,463.08 and 847.32 is: 1,270.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,308.74 : 3,463.08 = 847.32 : x
  2. Step 2: Convert to fraction form
    2,308.74/3,463.08 = 847.32/x
  3. Step 3: Cross multiply
    2,308.74x = 3,463.08 × 847.32
  4. Step 4: Simplify right side
    2,308.74x = 2,934,336.95
  5. Step 5: Solve for x
    x = 2,934,336.95/2,308.74
  6. Step 6: Final answer
    x = 1,270.97

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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.