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Finding the Fourth Proportional to 8,045.68, 12,065.10 and 3,665.92

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Solution

The fourth proportional to 8,045.68, 12,065.10 and 3,665.92 is: 5,497.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,045.68 : 12,065.10 = 3,665.92 : x
  2. Step 2: Convert to fraction form
    8,045.68/12,065.10 = 3,665.92/x
  3. Step 3: Cross multiply
    8,045.68x = 12,065.10 × 3,665.92
  4. Step 4: Simplify right side
    8,045.68x = 44,229,691.39
  5. Step 5: Solve for x
    x = 44,229,691.39/8,045.68
  6. Step 6: Final answer
    x = 5,497.32

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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.