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Finding the Fourth Proportional to 67,292.36, 92,859 and 40,436

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Solution

The fourth proportional to 67,292.36, 92,859 and 40,436 is: 55,799.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,292.36 : 92,859 = 40,436 : x
  2. Step 2: Convert to fraction form
    67,292.36/92,859 = 40,436/x
  3. Step 3: Cross multiply
    67,292.36x = 92,859 × 40,436
  4. Step 4: Simplify right side
    67,292.36x = 3,754,846,524
  5. Step 5: Solve for x
    x = 3,754,846,524/67,292.36
  6. Step 6: Final answer
    x = 55,799.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.