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Finding the Fourth Proportional to 8,265.65, 12,324.35 and 8,118.02

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Solution

The fourth proportional to 8,265.65, 12,324.35 and 8,118.02 is: 12,104.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,265.65 : 12,324.35 = 8,118.02 : x
  2. Step 2: Convert to fraction form
    8,265.65/12,324.35 = 8,118.02/x
  3. Step 3: Cross multiply
    8,265.65x = 12,324.35 × 8,118.02
  4. Step 4: Simplify right side
    8,265.65x = 100,049,370.89
  5. Step 5: Solve for x
    x = 100,049,370.89/8,265.65
  6. Step 6: Final answer
    x = 12,104.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.