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Finding the Fourth Proportional to 29,137.68, 40,209.47 and 17,039.32

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Solution

The fourth proportional to 29,137.68, 40,209.47 and 17,039.32 is: 23,513.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,137.68 : 40,209.47 = 17,039.32 : x
  2. Step 2: Convert to fraction form
    29,137.68/40,209.47 = 17,039.32/x
  3. Step 3: Cross multiply
    29,137.68x = 40,209.47 × 17,039.32
  4. Step 4: Simplify right side
    29,137.68x = 685,141,825.31
  5. Step 5: Solve for x
    x = 685,141,825.31/29,137.68
  6. Step 6: Final answer
    x = 23,513.95

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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.