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Finding the Fourth Proportional to 29,179.20, 40,267.20 and 16,603.20

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Solution

The fourth proportional to 29,179.20, 40,267.20 and 16,603.20 is: 22,912.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,179.20 : 40,267.20 = 16,603.20 : x
  2. Step 2: Convert to fraction form
    29,179.20/40,267.20 = 16,603.20/x
  3. Step 3: Cross multiply
    29,179.20x = 40,267.20 × 16,603.20
  4. Step 4: Simplify right side
    29,179.20x = 668,564,375.04
  5. Step 5: Solve for x
    x = 668,564,375.04/29,179.20
  6. Step 6: Final answer
    x = 22,912.36

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1.5x scale

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.