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Finding the Fourth Proportional to 17,532.80, 26,299.20 and 8,784.80

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Solution

The fourth proportional to 17,532.80, 26,299.20 and 8,784.80 is: 13,177.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,532.80 : 26,299.20 = 8,784.80 : x
  2. Step 2: Convert to fraction form
    17,532.80/26,299.20 = 8,784.80/x
  3. Step 3: Cross multiply
    17,532.80x = 26,299.20 × 8,784.80
  4. Step 4: Simplify right side
    17,532.80x = 231,033,212.16
  5. Step 5: Solve for x
    x = 231,033,212.16/17,532.80
  6. Step 6: Final answer
    x = 13,177.20

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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.