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Finding the Fourth Proportional to 8,689.92, 13,034.76 and 2,846.92

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Solution

The fourth proportional to 8,689.92, 13,034.76 and 2,846.92 is: 4,270.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,689.92 : 13,034.76 = 2,846.92 : x
  2. Step 2: Convert to fraction form
    8,689.92/13,034.76 = 2,846.92/x
  3. Step 3: Cross multiply
    8,689.92x = 13,034.76 × 2,846.92
  4. Step 4: Simplify right side
    8,689.92x = 37,108,918.94
  5. Step 5: Solve for x
    x = 37,108,918.94/8,689.92
  6. Step 6: Final answer
    x = 4,270.34

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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.