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Finding the Fourth Proportional to 16,638.32, 24,945.17 and 7,862.99

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Solution

The fourth proportional to 16,638.32, 24,945.17 and 7,862.99 is: 11,788.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,638.32 : 24,945.17 = 7,862.99 : x
  2. Step 2: Convert to fraction form
    16,638.32/24,945.17 = 7,862.99/x
  3. Step 3: Cross multiply
    16,638.32x = 24,945.17 × 7,862.99
  4. Step 4: Simplify right side
    16,638.32x = 196,143,458.22
  5. Step 5: Solve for x
    x = 196,143,458.22/16,638.32
  6. Step 6: Final answer
    x = 11,788.66

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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.