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Finding the Fourth Proportional to 16,609.71, 24,910.31 and 4,920.20

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Solution

The fourth proportional to 16,609.71, 24,910.31 and 4,920.20 is: 7,379.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,609.71 : 24,910.31 = 4,920.20 : x
  2. Step 2: Convert to fraction form
    16,609.71/24,910.31 = 4,920.20/x
  3. Step 3: Cross multiply
    16,609.71x = 24,910.31 × 4,920.20
  4. Step 4: Simplify right side
    16,609.71x = 122,563,558.11
  5. Step 5: Solve for x
    x = 122,563,558.11/16,609.71
  6. Step 6: Final answer
    x = 7,379.03

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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.