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Finding the Fourth Proportional to 15,181.59, 20,952.43 and 8,893.97

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Solution

The fourth proportional to 15,181.59, 20,952.43 and 8,893.97 is: 12,274.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,181.59 : 20,952.43 = 8,893.97 : x
  2. Step 2: Convert to fraction form
    15,181.59/20,952.43 = 8,893.97/x
  3. Step 3: Cross multiply
    15,181.59x = 20,952.43 × 8,893.97
  4. Step 4: Simplify right side
    15,181.59x = 186,350,235.42
  5. Step 5: Solve for x
    x = 186,350,235.42/15,181.59
  6. Step 6: Final answer
    x = 12,274.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.