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Finding the Fourth Proportional to 67,470.84, 101,211.12 and 25,917.84

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Solution

The fourth proportional to 67,470.84, 101,211.12 and 25,917.84 is: 38,878.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,470.84 : 101,211.12 = 25,917.84 : x
  2. Step 2: Convert to fraction form
    67,470.84/101,211.12 = 25,917.84/x
  3. Step 3: Cross multiply
    67,470.84x = 101,211.12 × 25,917.84
  4. Step 4: Simplify right side
    67,470.84x = 2,623,173,614.38
  5. Step 5: Solve for x
    x = 2,623,173,614.38/67,470.84
  6. Step 6: Final answer
    x = 38,878.63

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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.