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Finding the Fourth Proportional to 28,651.19, 42,984.21 and 10,882.14

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Solution

The fourth proportional to 28,651.19, 42,984.21 and 10,882.14 is: 16,326.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,651.19 : 42,984.21 = 10,882.14 : x
  2. Step 2: Convert to fraction form
    28,651.19/42,984.21 = 10,882.14/x
  3. Step 3: Cross multiply
    28,651.19x = 42,984.21 × 10,882.14
  4. Step 4: Simplify right side
    28,651.19x = 467,760,191.01
  5. Step 5: Solve for x
    x = 467,760,191.01/28,651.19
  6. Step 6: Final answer
    x = 16,326.03

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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.