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Finding the Fourth Proportional to 18,656.59, 27,986.43 and 6,176.23

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Solution

The fourth proportional to 18,656.59, 27,986.43 and 6,176.23 is: 9,264.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,656.59 : 27,986.43 = 6,176.23 : x
  2. Step 2: Convert to fraction form
    18,656.59/27,986.43 = 6,176.23/x
  3. Step 3: Cross multiply
    18,656.59x = 27,986.43 × 6,176.23
  4. Step 4: Simplify right side
    18,656.59x = 172,850,628.56
  5. Step 5: Solve for x
    x = 172,850,628.56/18,656.59
  6. Step 6: Final answer
    x = 9,264.86

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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.