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Finding the Fourth Proportional to 17,653.95, 24,378.26 and 13,169.91

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Solution

The fourth proportional to 17,653.95, 24,378.26 and 13,169.91 is: 18,186.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,653.95 : 24,378.26 = 13,169.91 : x
  2. Step 2: Convert to fraction form
    17,653.95/24,378.26 = 13,169.91/x
  3. Step 3: Cross multiply
    17,653.95x = 24,378.26 × 13,169.91
  4. Step 4: Simplify right side
    17,653.95x = 321,059,490.16
  5. Step 5: Solve for x
    x = 321,059,490.16/17,653.95
  6. Step 6: Final answer
    x = 18,186.27

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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.