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Finding the Fourth Proportional to 14,589.77, 21,843.32 and 11,340.86

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Solution

The fourth proportional to 14,589.77, 21,843.32 and 11,340.86 is: 16,979.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,589.77 : 21,843.32 = 11,340.86 : x
  2. Step 2: Convert to fraction form
    14,589.77/21,843.32 = 11,340.86/x
  3. Step 3: Cross multiply
    14,589.77x = 21,843.32 × 11,340.86
  4. Step 4: Simplify right side
    14,589.77x = 247,721,868.13
  5. Step 5: Solve for x
    x = 247,721,868.13/14,589.77
  6. Step 6: Final answer
    x = 16,979.15

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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.