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Finding the Fourth Proportional to 8,551.91, 12,827.75 and 2,708.51

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Solution

The fourth proportional to 8,551.91, 12,827.75 and 2,708.51 is: 4,062.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,551.91 : 12,827.75 = 2,708.51 : x
  2. Step 2: Convert to fraction form
    8,551.91/12,827.75 = 2,708.51/x
  3. Step 3: Cross multiply
    8,551.91x = 12,827.75 × 2,708.51
  4. Step 4: Simplify right side
    8,551.91x = 34,744,011.47
  5. Step 5: Solve for x
    x = 34,744,011.47/8,551.91
  6. Step 6: Final answer
    x = 4,062.72

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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.