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Finding the Fourth Proportional to 51,159.60, 76,693.95 and 27,479.86

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Solution

The fourth proportional to 51,159.60, 76,693.95 and 27,479.86 is: 41,195.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,159.60 : 76,693.95 = 27,479.86 : x
  2. Step 2: Convert to fraction form
    51,159.60/76,693.95 = 27,479.86/x
  3. Step 3: Cross multiply
    51,159.60x = 76,693.95 × 27,479.86
  4. Step 4: Simplify right side
    51,159.60x = 2,107,538,817.11
  5. Step 5: Solve for x
    x = 2,107,538,817.11/51,159.60
  6. Step 6: Final answer
    x = 41,195.37

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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.