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Finding the Fourth Proportional to 12,053.45, 16,631.78 and 7,574.03

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Solution

The fourth proportional to 12,053.45, 16,631.78 and 7,574.03 is: 10,450.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,053.45 : 16,631.78 = 7,574.03 : x
  2. Step 2: Convert to fraction form
    12,053.45/16,631.78 = 7,574.03/x
  3. Step 3: Cross multiply
    12,053.45x = 16,631.78 × 7,574.03
  4. Step 4: Simplify right side
    12,053.45x = 125,969,584.62
  5. Step 5: Solve for x
    x = 125,969,584.62/12,053.45
  6. Step 6: Final answer
    x = 10,450.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.