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Finding the Fourth Proportional to 18,402.59, 27,612.09 and 6,713.08

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Solution

The fourth proportional to 18,402.59, 27,612.09 and 6,713.08 is: 10,072.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,402.59 : 27,612.09 = 6,713.08 : x
  2. Step 2: Convert to fraction form
    18,402.59/27,612.09 = 6,713.08/x
  3. Step 3: Cross multiply
    18,402.59x = 27,612.09 × 6,713.08
  4. Step 4: Simplify right side
    18,402.59x = 185,362,031.08
  5. Step 5: Solve for x
    x = 185,362,031.08/18,402.59
  6. Step 6: Final answer
    x = 10,072.61

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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.