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Finding the Fourth Proportional to 29,142.52, 43,703.70 and 18,032.20

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Solution

The fourth proportional to 29,142.52, 43,703.70 and 18,032.20 is: 27,042.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,142.52 : 43,703.70 = 18,032.20 : x
  2. Step 2: Convert to fraction form
    29,142.52/43,703.70 = 18,032.20/x
  3. Step 3: Cross multiply
    29,142.52x = 43,703.70 × 18,032.20
  4. Step 4: Simplify right side
    29,142.52x = 788,073,859.14
  5. Step 5: Solve for x
    x = 788,073,859.14/29,142.52
  6. Step 6: Final answer
    x = 27,042.06

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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.