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Finding the Fourth Proportional to 29,642.76, 40,917.30 and 17,072.52

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Solution

The fourth proportional to 29,642.76, 40,917.30 and 17,072.52 is: 23,566.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,642.76 : 40,917.30 = 17,072.52 : x
  2. Step 2: Convert to fraction form
    29,642.76/40,917.30 = 17,072.52/x
  3. Step 3: Cross multiply
    29,642.76x = 40,917.30 × 17,072.52
  4. Step 4: Simplify right side
    29,642.76x = 698,561,422.60
  5. Step 5: Solve for x
    x = 698,561,422.60/29,642.76
  6. Step 6: Final answer
    x = 23,566.00

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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.