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Finding the Fourth Proportional to 29,129.78, 40,203.06 and 17,033.96

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Solution

The fourth proportional to 29,129.78, 40,203.06 and 17,033.96 is: 23,509.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,129.78 : 40,203.06 = 17,033.96 : x
  2. Step 2: Convert to fraction form
    29,129.78/40,203.06 = 17,033.96/x
  3. Step 3: Cross multiply
    29,129.78x = 40,203.06 × 17,033.96
  4. Step 4: Simplify right side
    29,129.78x = 684,817,114.90
  5. Step 5: Solve for x
    x = 684,817,114.90/29,129.78
  6. Step 6: Final answer
    x = 23,509.18

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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.