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Finding the Fourth Proportional to 17,089.60, 25,655.20 and 10,849.60

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Solution

The fourth proportional to 17,089.60, 25,655.20 and 10,849.60 is: 16,287.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,089.60 : 25,655.20 = 10,849.60 : x
  2. Step 2: Convert to fraction form
    17,089.60/25,655.20 = 10,849.60/x
  3. Step 3: Cross multiply
    17,089.60x = 25,655.20 × 10,849.60
  4. Step 4: Simplify right side
    17,089.60x = 278,348,657.92
  5. Step 5: Solve for x
    x = 278,348,657.92/17,089.60
  6. Step 6: Final answer
    x = 16,287.61

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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.