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Finding the Fourth Proportional to 17,909.60, 24,716.80 and 9,951.68

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Solution

The fourth proportional to 17,909.60, 24,716.80 and 9,951.68 is: 13,734.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,909.60 : 24,716.80 = 9,951.68 : x
  2. Step 2: Convert to fraction form
    17,909.60/24,716.80 = 9,951.68/x
  3. Step 3: Cross multiply
    17,909.60x = 24,716.80 × 9,951.68
  4. Step 4: Simplify right side
    17,909.60x = 245,973,684.22
  5. Step 5: Solve for x
    x = 245,973,684.22/17,909.60
  6. Step 6: Final answer
    x = 13,734.18

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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.