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Finding the Fourth Proportional to 16,612.40, 24,919.80 and 5,526.80

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Solution

The fourth proportional to 16,612.40, 24,919.80 and 5,526.80 is: 8,290.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,612.40 : 24,919.80 = 5,526.80 : x
  2. Step 2: Convert to fraction form
    16,612.40/24,919.80 = 5,526.80/x
  3. Step 3: Cross multiply
    16,612.40x = 24,919.80 × 5,526.80
  4. Step 4: Simplify right side
    16,612.40x = 137,726,750.64
  5. Step 5: Solve for x
    x = 137,726,750.64/16,612.40
  6. Step 6: Final answer
    x = 8,290.60

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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.