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Finding the Fourth Proportional to 11,620.08, 17,411.67 and 6,929.01

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Solution

The fourth proportional to 11,620.08, 17,411.67 and 6,929.01 is: 10,382.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,620.08 : 17,411.67 = 6,929.01 : x
  2. Step 2: Convert to fraction form
    11,620.08/17,411.67 = 6,929.01/x
  3. Step 3: Cross multiply
    11,620.08x = 17,411.67 × 6,929.01
  4. Step 4: Simplify right side
    11,620.08x = 120,645,635.55
  5. Step 5: Solve for x
    x = 120,645,635.55/11,620.08
  6. Step 6: Final answer
    x = 10,382.51

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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.