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Finding the Fourth Proportional to 29,142.80, 43,714.20 and 16,662.80

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Solution

The fourth proportional to 29,142.80, 43,714.20 and 16,662.80 is: 24,994.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,142.80 : 43,714.20 = 16,662.80 : x
  2. Step 2: Convert to fraction form
    29,142.80/43,714.20 = 16,662.80/x
  3. Step 3: Cross multiply
    29,142.80x = 43,714.20 × 16,662.80
  4. Step 4: Simplify right side
    29,142.80x = 728,400,971.76
  5. Step 5: Solve for x
    x = 728,400,971.76/29,142.80
  6. Step 6: Final answer
    x = 24,994.20

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1.5x scale

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.