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Finding the Fourth Proportional to 76,961.38, 115,459.38 and 27,044.93

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Solution

The fourth proportional to 76,961.38, 115,459.38 and 27,044.93 is: 40,573.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,961.38 : 115,459.38 = 27,044.93 : x
  2. Step 2: Convert to fraction form
    76,961.38/115,459.38 = 27,044.93/x
  3. Step 3: Cross multiply
    76,961.38x = 115,459.38 × 27,044.93
  4. Step 4: Simplify right side
    76,961.38x = 3,122,590,272.65
  5. Step 5: Solve for x
    x = 3,122,590,272.65/76,961.38
  6. Step 6: Final answer
    x = 40,573.47

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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.