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Finding the Fourth Proportional to 29,138.60, 40,200.90 and 17,195.96

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Solution

The fourth proportional to 29,138.60, 40,200.90 and 17,195.96 is: 23,724.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,138.60 : 40,200.90 = 17,195.96 : x
  2. Step 2: Convert to fraction form
    29,138.60/40,200.90 = 17,195.96/x
  3. Step 3: Cross multiply
    29,138.60x = 40,200.90 × 17,195.96
  4. Step 4: Simplify right side
    29,138.60x = 691,293,068.36
  5. Step 5: Solve for x
    x = 691,293,068.36/29,138.60
  6. Step 6: Final answer
    x = 23,724.31

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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.