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Finding the Fourth Proportional to 21,694.76, 32,542.12 and 6,903.68

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Solution

The fourth proportional to 21,694.76, 32,542.12 and 6,903.68 is: 10,355.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,694.76 : 32,542.12 = 6,903.68 : x
  2. Step 2: Convert to fraction form
    21,694.76/32,542.12 = 6,903.68/x
  3. Step 3: Cross multiply
    21,694.76x = 32,542.12 × 6,903.68
  4. Step 4: Simplify right side
    21,694.76x = 224,660,383.00
  5. Step 5: Solve for x
    x = 224,660,383.00/21,694.76
  6. Step 6: Final answer
    x = 10,355.51

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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.