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Finding the Fourth Proportional to 16,766.40, 25,148.79 and 6,236.40

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Solution

The fourth proportional to 16,766.40, 25,148.79 and 6,236.40 is: 9,354.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,766.40 : 25,148.79 = 6,236.40 : x
  2. Step 2: Convert to fraction form
    16,766.40/25,148.79 = 6,236.40/x
  3. Step 3: Cross multiply
    16,766.40x = 25,148.79 × 6,236.40
  4. Step 4: Simplify right side
    16,766.40x = 156,837,913.96
  5. Step 5: Solve for x
    x = 156,837,913.96/16,766.40
  6. Step 6: Final answer
    x = 9,354.30

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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.