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Finding the Fourth Proportional to 16,685.35, 25,028.01 and 11,781.01

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Solution

The fourth proportional to 16,685.35, 25,028.01 and 11,781.01 is: 17,671.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,685.35 : 25,028.01 = 11,781.01 : x
  2. Step 2: Convert to fraction form
    16,685.35/25,028.01 = 11,781.01/x
  3. Step 3: Cross multiply
    16,685.35x = 25,028.01 × 11,781.01
  4. Step 4: Simplify right side
    16,685.35x = 294,855,236.09
  5. Step 5: Solve for x
    x = 294,855,236.09/16,685.35
  6. Step 6: Final answer
    x = 17,671.50

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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.