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Finding the Fourth Proportional to 18,563.61, 27,857.97 and 6,876.93

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Solution

The fourth proportional to 18,563.61, 27,857.97 and 6,876.93 is: 10,320.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,563.61 : 27,857.97 = 6,876.93 : x
  2. Step 2: Convert to fraction form
    18,563.61/27,857.97 = 6,876.93/x
  3. Step 3: Cross multiply
    18,563.61x = 27,857.97 × 6,876.93
  4. Step 4: Simplify right side
    18,563.61x = 191,577,309.63
  5. Step 5: Solve for x
    x = 191,577,309.63/18,563.61
  6. Step 6: Final answer
    x = 10,320.05

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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.