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Finding the Fourth Proportional to 8,589.51, 12,882.65 and 3,042.63

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Solution

The fourth proportional to 8,589.51, 12,882.65 and 3,042.63 is: 4,563.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,589.51 : 12,882.65 = 3,042.63 : x
  2. Step 2: Convert to fraction form
    8,589.51/12,882.65 = 3,042.63/x
  3. Step 3: Cross multiply
    8,589.51x = 12,882.65 × 3,042.63
  4. Step 4: Simplify right side
    8,589.51x = 39,197,122.16
  5. Step 5: Solve for x
    x = 39,197,122.16/8,589.51
  6. Step 6: Final answer
    x = 4,563.37

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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.