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Finding the Fourth Proportional to 8,530.65, 12,797.33 and 2,983.86

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Solution

The fourth proportional to 8,530.65, 12,797.33 and 2,983.86 is: 4,476.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,530.65 : 12,797.33 = 2,983.86 : x
  2. Step 2: Convert to fraction form
    8,530.65/12,797.33 = 2,983.86/x
  3. Step 3: Cross multiply
    8,530.65x = 12,797.33 × 2,983.86
  4. Step 4: Simplify right side
    8,530.65x = 38,185,426.17
  5. Step 5: Solve for x
    x = 38,185,426.17/8,530.65
  6. Step 6: Final answer
    x = 4,476.26

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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.