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Finding the Fourth Proportional to 27,282.66, 40,919.40 and 8,814.66

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Solution

The fourth proportional to 27,282.66, 40,919.40 and 8,814.66 is: 13,220.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,282.66 : 40,919.40 = 8,814.66 : x
  2. Step 2: Convert to fraction form
    27,282.66/40,919.40 = 8,814.66/x
  3. Step 3: Cross multiply
    27,282.66x = 40,919.40 × 8,814.66
  4. Step 4: Simplify right side
    27,282.66x = 360,690,598.40
  5. Step 5: Solve for x
    x = 360,690,598.40/27,282.66
  6. Step 6: Final answer
    x = 13,220.51

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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.