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Finding the Fourth Proportional to 17,479.63, 24,121.86 and 9,521.85

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Solution

The fourth proportional to 17,479.63, 24,121.86 and 9,521.85 is: 13,140.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,479.63 : 24,121.86 = 9,521.85 : x
  2. Step 2: Convert to fraction form
    17,479.63/24,121.86 = 9,521.85/x
  3. Step 3: Cross multiply
    17,479.63x = 24,121.86 × 9,521.85
  4. Step 4: Simplify right side
    17,479.63x = 229,684,732.64
  5. Step 5: Solve for x
    x = 229,684,732.64/17,479.63
  6. Step 6: Final answer
    x = 13,140.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.