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Finding the Fourth Proportional to 28,517.96, 42,782.96 and 10,748.24

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Solution

The fourth proportional to 28,517.96, 42,782.96 and 10,748.24 is: 16,124.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,517.96 : 42,782.96 = 10,748.24 : x
  2. Step 2: Convert to fraction form
    28,517.96/42,782.96 = 10,748.24/x
  3. Step 3: Cross multiply
    28,517.96x = 42,782.96 × 10,748.24
  4. Step 4: Simplify right side
    28,517.96x = 459,841,521.99
  5. Step 5: Solve for x
    x = 459,841,521.99/28,517.96
  6. Step 6: Final answer
    x = 16,124.63

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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.