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Finding the Fourth Proportional to 8,875.92, 13,309.80 and 2,633.68

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Solution

The fourth proportional to 8,875.92, 13,309.80 and 2,633.68 is: 3,949.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,875.92 : 13,309.80 = 2,633.68 : x
  2. Step 2: Convert to fraction form
    8,875.92/13,309.80 = 2,633.68/x
  3. Step 3: Cross multiply
    8,875.92x = 13,309.80 × 2,633.68
  4. Step 4: Simplify right side
    8,875.92x = 35,053,754.06
  5. Step 5: Solve for x
    x = 35,053,754.06/8,875.92
  6. Step 6: Final answer
    x = 3,949.31

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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.