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Finding the Fourth Proportional to 16,615.92, 24,882.86 and 12,887.08

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Solution

The fourth proportional to 16,615.92, 24,882.86 and 12,887.08 is: 19,298.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,615.92 : 24,882.86 = 12,887.08 : x
  2. Step 2: Convert to fraction form
    16,615.92/24,882.86 = 12,887.08/x
  3. Step 3: Cross multiply
    16,615.92x = 24,882.86 × 12,887.08
  4. Step 4: Simplify right side
    16,615.92x = 320,667,407.45
  5. Step 5: Solve for x
    x = 320,667,407.45/16,615.92
  6. Step 6: Final answer
    x = 19,298.81

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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.