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Finding the Fourth Proportional to 29,552.88, 40,786.56 and 21,591.12

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Solution

The fourth proportional to 29,552.88, 40,786.56 and 21,591.12 is: 29,798.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,552.88 : 40,786.56 = 21,591.12 : x
  2. Step 2: Convert to fraction form
    29,552.88/40,786.56 = 21,591.12/x
  3. Step 3: Cross multiply
    29,552.88x = 40,786.56 × 21,591.12
  4. Step 4: Simplify right side
    29,552.88x = 880,627,511.35
  5. Step 5: Solve for x
    x = 880,627,511.35/29,552.88
  6. Step 6: Final answer
    x = 29,798.37

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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.