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Finding the Fourth Proportional to 17,281.80, 25,926.36 and 9,788.88

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Solution

The fourth proportional to 17,281.80, 25,926.36 and 9,788.88 is: 14,685.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,281.80 : 25,926.36 = 9,788.88 : x
  2. Step 2: Convert to fraction form
    17,281.80/25,926.36 = 9,788.88/x
  3. Step 3: Cross multiply
    17,281.80x = 25,926.36 × 9,788.88
  4. Step 4: Simplify right side
    17,281.80x = 253,790,026.88
  5. Step 5: Solve for x
    x = 253,790,026.88/17,281.80
  6. Step 6: Final answer
    x = 14,685.39

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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.