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Finding the Fourth Proportional to 19,167.60, 28,686.60 and 16,834.80

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Solution

The fourth proportional to 19,167.60, 28,686.60 and 16,834.80 is: 25,195.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,167.60 : 28,686.60 = 16,834.80 : x
  2. Step 2: Convert to fraction form
    19,167.60/28,686.60 = 16,834.80/x
  3. Step 3: Cross multiply
    19,167.60x = 28,686.60 × 16,834.80
  4. Step 4: Simplify right side
    19,167.60x = 482,933,173.68
  5. Step 5: Solve for x
    x = 482,933,173.68/19,167.60
  6. Step 6: Final answer
    x = 25,195.29

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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.