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Finding the Fourth Proportional to 16,806.65, 25,210.10 and 6,279.05

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Solution

The fourth proportional to 16,806.65, 25,210.10 and 6,279.05 is: 9,418.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,806.65 : 25,210.10 = 6,279.05 : x
  2. Step 2: Convert to fraction form
    16,806.65/25,210.10 = 6,279.05/x
  3. Step 3: Cross multiply
    16,806.65x = 25,210.10 × 6,279.05
  4. Step 4: Simplify right side
    16,806.65x = 158,295,320.96
  5. Step 5: Solve for x
    x = 158,295,320.96/16,806.65
  6. Step 6: Final answer
    x = 9,418.62

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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.