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Finding the Fourth Proportional to 27,078.17, 40,614.68 and 8,353.17

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Solution

The fourth proportional to 27,078.17, 40,614.68 and 8,353.17 is: 12,528.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,078.17 : 40,614.68 = 8,353.17 : x
  2. Step 2: Convert to fraction form
    27,078.17/40,614.68 = 8,353.17/x
  3. Step 3: Cross multiply
    27,078.17x = 40,614.68 × 8,353.17
  4. Step 4: Simplify right side
    27,078.17x = 339,261,284.77
  5. Step 5: Solve for x
    x = 339,261,284.77/27,078.17
  6. Step 6: Final answer
    x = 12,528.96

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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.