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Finding the Fourth Proportional to 16,837.79, 25,217.71 and 8,388.91

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Solution

The fourth proportional to 16,837.79, 25,217.71 and 8,388.91 is: 12,563.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,837.79 : 25,217.71 = 8,388.91 : x
  2. Step 2: Convert to fraction form
    16,837.79/25,217.71 = 8,388.91/x
  3. Step 3: Cross multiply
    16,837.79x = 25,217.71 × 8,388.91
  4. Step 4: Simplify right side
    16,837.79x = 211,549,099.60
  5. Step 5: Solve for x
    x = 211,549,099.60/16,837.79
  6. Step 6: Final answer
    x = 12,563.95

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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.