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Finding the Fourth Proportional to 11,141.80, 16,710.30 and 4,901.80

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Solution

The fourth proportional to 11,141.80, 16,710.30 and 4,901.80 is: 7,351.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,141.80 : 16,710.30 = 4,901.80 : x
  2. Step 2: Convert to fraction form
    11,141.80/16,710.30 = 4,901.80/x
  3. Step 3: Cross multiply
    11,141.80x = 16,710.30 × 4,901.80
  4. Step 4: Simplify right side
    11,141.80x = 81,910,548.54
  5. Step 5: Solve for x
    x = 81,910,548.54/11,141.80
  6. Step 6: Final answer
    x = 7,351.64

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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.