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Finding the Fourth Proportional to 29,042.70, 40,077.36 and 17,103.30

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Solution

The fourth proportional to 29,042.70, 40,077.36 and 17,103.30 is: 23,601.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,042.70 : 40,077.36 = 17,103.30 : x
  2. Step 2: Convert to fraction form
    29,042.70/40,077.36 = 17,103.30/x
  3. Step 3: Cross multiply
    29,042.70x = 40,077.36 × 17,103.30
  4. Step 4: Simplify right side
    29,042.70x = 685,455,111.29
  5. Step 5: Solve for x
    x = 685,455,111.29/29,042.70
  6. Step 6: Final answer
    x = 23,601.63

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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.