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Finding the Fourth Proportional to 16,508.80, 24,766.20 and 5,412.40

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Solution

The fourth proportional to 16,508.80, 24,766.20 and 5,412.40 is: 8,119.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,508.80 : 24,766.20 = 5,412.40 : x
  2. Step 2: Convert to fraction form
    16,508.80/24,766.20 = 5,412.40/x
  3. Step 3: Cross multiply
    16,508.80x = 24,766.20 × 5,412.40
  4. Step 4: Simplify right side
    16,508.80x = 134,044,580.88
  5. Step 5: Solve for x
    x = 134,044,580.88/16,508.80
  6. Step 6: Final answer
    x = 8,119.58

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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.