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Finding the Fourth Proportional to 16,486.72, 24,718.56 and 8,156.56

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Solution

The fourth proportional to 16,486.72, 24,718.56 and 8,156.56 is: 12,229.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,486.72 : 24,718.56 = 8,156.56 : x
  2. Step 2: Convert to fraction form
    16,486.72/24,718.56 = 8,156.56/x
  3. Step 3: Cross multiply
    16,486.72x = 24,718.56 × 8,156.56
  4. Step 4: Simplify right side
    16,486.72x = 201,618,417.75
  5. Step 5: Solve for x
    x = 201,618,417.75/16,486.72
  6. Step 6: Final answer
    x = 12,229.14

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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.