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Finding the Fourth Proportional to 16,791.70, 25,199.70 and 9,388.30

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Solution

The fourth proportional to 16,791.70, 25,199.70 and 9,388.30 is: 14,089.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,791.70 : 25,199.70 = 9,388.30 : x
  2. Step 2: Convert to fraction form
    16,791.70/25,199.70 = 9,388.30/x
  3. Step 3: Cross multiply
    16,791.70x = 25,199.70 × 9,388.30
  4. Step 4: Simplify right side
    16,791.70x = 236,582,343.51
  5. Step 5: Solve for x
    x = 236,582,343.51/16,791.70
  6. Step 6: Final answer
    x = 14,089.24

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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.