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Finding the Fourth Proportional to 17,285.60, 25,966.80 and 16,632.80

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Solution

The fourth proportional to 17,285.60, 25,966.80 and 16,632.80 is: 24,986.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,285.60 : 25,966.80 = 16,632.80 : x
  2. Step 2: Convert to fraction form
    17,285.60/25,966.80 = 16,632.80/x
  3. Step 3: Cross multiply
    17,285.60x = 25,966.80 × 16,632.80
  4. Step 4: Simplify right side
    17,285.60x = 431,900,591.04
  5. Step 5: Solve for x
    x = 431,900,591.04/17,285.60
  6. Step 6: Final answer
    x = 24,986.15

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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.