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Finding the Fourth Proportional to 67,120, 92,625.64 and 36,907.24

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Solution

The fourth proportional to 67,120, 92,625.64 and 36,907.24 is: 50,932.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,120 : 92,625.64 = 36,907.24 : x
  2. Step 2: Convert to fraction form
    67,120/92,625.64 = 36,907.24/x
  3. Step 3: Cross multiply
    67,120x = 92,625.64 × 36,907.24
  4. Step 4: Simplify right side
    67,120x = 3,418,556,725.63
  5. Step 5: Solve for x
    x = 3,418,556,725.63/67,120
  6. Step 6: Final answer
    x = 50,932.01

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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.