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Finding the Fourth Proportional to 28,489.62, 39,299.24 and 17,151.24

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Solution

The fourth proportional to 28,489.62, 39,299.24 and 17,151.24 is: 23,658.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,489.62 : 39,299.24 = 17,151.24 : x
  2. Step 2: Convert to fraction form
    28,489.62/39,299.24 = 17,151.24/x
  3. Step 3: Cross multiply
    28,489.62x = 39,299.24 × 17,151.24
  4. Step 4: Simplify right side
    28,489.62x = 674,030,697.06
  5. Step 5: Solve for x
    x = 674,030,697.06/28,489.62
  6. Step 6: Final answer
    x = 23,658.82

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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.