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Finding the Fourth Proportional to 21,694.94, 32,542.41 and 11,326.94

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Solution

The fourth proportional to 21,694.94, 32,542.41 and 11,326.94 is: 16,990.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,694.94 : 32,542.41 = 11,326.94 : x
  2. Step 2: Convert to fraction form
    21,694.94/32,542.41 = 11,326.94/x
  3. Step 3: Cross multiply
    21,694.94x = 32,542.41 × 11,326.94
  4. Step 4: Simplify right side
    21,694.94x = 368,605,762.81
  5. Step 5: Solve for x
    x = 368,605,762.81/21,694.94
  6. Step 6: Final answer
    x = 16,990.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.