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Finding the Fourth Proportional to 67,806.11, 101,649.25 and 25,656.93

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Solution

The fourth proportional to 67,806.11, 101,649.25 and 25,656.93 is: 38,462.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,806.11 : 101,649.25 = 25,656.93 : x
  2. Step 2: Convert to fraction form
    67,806.11/101,649.25 = 25,656.93/x
  3. Step 3: Cross multiply
    67,806.11x = 101,649.25 × 25,656.93
  4. Step 4: Simplify right side
    67,806.11x = 2,608,007,510.15
  5. Step 5: Solve for x
    x = 2,608,007,510.15/67,806.11
  6. Step 6: Final answer
    x = 38,462.72

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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.