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Finding the Fourth Proportional to 8,913.27, 13,371.54 and 3,070.47

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Solution

The fourth proportional to 8,913.27, 13,371.54 and 3,070.47 is: 4,606.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,913.27 : 13,371.54 = 3,070.47 : x
  2. Step 2: Convert to fraction form
    8,913.27/13,371.54 = 3,070.47/x
  3. Step 3: Cross multiply
    8,913.27x = 13,371.54 × 3,070.47
  4. Step 4: Simplify right side
    8,913.27x = 41,056,912.42
  5. Step 5: Solve for x
    x = 41,056,912.42/8,913.27
  6. Step 6: Final answer
    x = 4,606.27

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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.