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Finding the Fourth Proportional to 8,689.64, 13,025.28 and 2,844.68

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Solution

The fourth proportional to 8,689.64, 13,025.28 and 2,844.68 is: 4,264.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,689.64 : 13,025.28 = 2,844.68 : x
  2. Step 2: Convert to fraction form
    8,689.64/13,025.28 = 2,844.68/x
  3. Step 3: Cross multiply
    8,689.64x = 13,025.28 × 2,844.68
  4. Step 4: Simplify right side
    8,689.64x = 37,052,753.51
  5. Step 5: Solve for x
    x = 37,052,753.51/8,689.64
  6. Step 6: Final answer
    x = 4,264.01

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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.