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Finding the Fourth Proportional to 29,671.99, 40,947.45 and 16,243.36

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Solution

The fourth proportional to 29,671.99, 40,947.45 and 16,243.36 is: 22,415.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,671.99 : 40,947.45 = 16,243.36 : x
  2. Step 2: Convert to fraction form
    29,671.99/40,947.45 = 16,243.36/x
  3. Step 3: Cross multiply
    29,671.99x = 40,947.45 × 16,243.36
  4. Step 4: Simplify right side
    29,671.99x = 665,124,171.43
  5. Step 5: Solve for x
    x = 665,124,171.43/29,671.99
  6. Step 6: Final answer
    x = 22,415.89

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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.