Home / 16,992.53-25,480.57-7,129.16

Finding the Fourth Proportional to 16,992.53, 25,480.57 and 7,129.16

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Solution

The fourth proportional to 16,992.53, 25,480.57 and 7,129.16 is: 10,690.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,992.53 : 25,480.57 = 7,129.16 : x
  2. Step 2: Convert to fraction form
    16,992.53/25,480.57 = 7,129.16/x
  3. Step 3: Cross multiply
    16,992.53x = 25,480.57 × 7,129.16
  4. Step 4: Simplify right side
    16,992.53x = 181,655,060.42
  5. Step 5: Solve for x
    x = 181,655,060.42/16,992.53
  6. Step 6: Final answer
    x = 10,690.29

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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.