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Finding the Fourth Proportional to 16,239.36, 24,348.48 and 7,917.12

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Solution

The fourth proportional to 16,239.36, 24,348.48 and 7,917.12 is: 11,870.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,239.36 : 24,348.48 = 7,917.12 : x
  2. Step 2: Convert to fraction form
    16,239.36/24,348.48 = 7,917.12/x
  3. Step 3: Cross multiply
    16,239.36x = 24,348.48 × 7,917.12
  4. Step 4: Simplify right side
    16,239.36x = 192,769,837.98
  5. Step 5: Solve for x
    x = 192,769,837.98/16,239.36
  6. Step 6: Final answer
    x = 11,870.53

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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.