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Finding the Fourth Proportional to 51,508.84, 77,274.84 and 27,815.86

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Solution

The fourth proportional to 51,508.84, 77,274.84 and 27,815.86 is: 41,730.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,508.84 : 77,274.84 = 27,815.86 : x
  2. Step 2: Convert to fraction form
    51,508.84/77,274.84 = 27,815.86/x
  3. Step 3: Cross multiply
    51,508.84x = 77,274.84 × 27,815.86
  4. Step 4: Simplify right side
    51,508.84x = 2,149,466,130.96
  5. Step 5: Solve for x
    x = 2,149,466,130.96/51,508.84
  6. Step 6: Final answer
    x = 41,730.04

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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.