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Finding the Fourth Proportional to 11,204.80, 16,807.20 and 4,628.80

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Solution

The fourth proportional to 11,204.80, 16,807.20 and 4,628.80 is: 6,943.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,204.80 : 16,807.20 = 4,628.80 : x
  2. Step 2: Convert to fraction form
    11,204.80/16,807.20 = 4,628.80/x
  3. Step 3: Cross multiply
    11,204.80x = 16,807.20 × 4,628.80
  4. Step 4: Simplify right side
    11,204.80x = 77,797,167.36
  5. Step 5: Solve for x
    x = 77,797,167.36/11,204.80
  6. Step 6: Final answer
    x = 6,943.20

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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.