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Finding the Fourth Proportional to 51,278.60, 76,874.70 and 26,654.60

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Solution

The fourth proportional to 51,278.60, 76,874.70 and 26,654.60 is: 39,959.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,278.60 : 76,874.70 = 26,654.60 : x
  2. Step 2: Convert to fraction form
    51,278.60/76,874.70 = 26,654.60/x
  3. Step 3: Cross multiply
    51,278.60x = 76,874.70 × 26,654.60
  4. Step 4: Simplify right side
    51,278.60x = 2,049,064,378.62
  5. Step 5: Solve for x
    x = 2,049,064,378.62/51,278.60
  6. Step 6: Final answer
    x = 39,959.44

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1.5x scale

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.