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Finding the Fourth Proportional to 67,365.84, 101,049 and 20,618.52

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Solution

The fourth proportional to 67,365.84, 101,049 and 20,618.52 is: 30,927.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,365.84 : 101,049 = 20,618.52 : x
  2. Step 2: Convert to fraction form
    67,365.84/101,049 = 20,618.52/x
  3. Step 3: Cross multiply
    67,365.84x = 101,049 × 20,618.52
  4. Step 4: Simplify right side
    67,365.84x = 2,083,480,827.48
  5. Step 5: Solve for x
    x = 2,083,480,827.48/67,365.84
  6. Step 6: Final answer
    x = 30,927.85

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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.