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Finding the Fourth Proportional to 16,585.80, 22,910.88 and 15,404.88

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Solution

The fourth proportional to 16,585.80, 22,910.88 and 15,404.88 is: 21,279.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,585.80 : 22,910.88 = 15,404.88 : x
  2. Step 2: Convert to fraction form
    16,585.80/22,910.88 = 15,404.88/x
  3. Step 3: Cross multiply
    16,585.80x = 22,910.88 × 15,404.88
  4. Step 4: Simplify right side
    16,585.80x = 352,939,357.09
  5. Step 5: Solve for x
    x = 352,939,357.09/16,585.80
  6. Step 6: Final answer
    x = 21,279.61

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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.