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Finding the Fourth Proportional to 8,266.92, 12,405.90 and 3,073.32

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Solution

The fourth proportional to 8,266.92, 12,405.90 and 3,073.32 is: 4,612.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,266.92 : 12,405.90 = 3,073.32 : x
  2. Step 2: Convert to fraction form
    8,266.92/12,405.90 = 3,073.32/x
  3. Step 3: Cross multiply
    8,266.92x = 12,405.90 × 3,073.32
  4. Step 4: Simplify right side
    8,266.92x = 38,127,300.59
  5. Step 5: Solve for x
    x = 38,127,300.59/8,266.92
  6. Step 6: Final answer
    x = 4,612.03

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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.