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Finding the Fourth Proportional to 19,703.87, 27,190.80 and 10,751.37

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Solution

The fourth proportional to 19,703.87, 27,190.80 and 10,751.37 is: 14,836.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,703.87 : 27,190.80 = 10,751.37 : x
  2. Step 2: Convert to fraction form
    19,703.87/27,190.80 = 10,751.37/x
  3. Step 3: Cross multiply
    19,703.87x = 27,190.80 × 10,751.37
  4. Step 4: Simplify right side
    19,703.87x = 292,338,351.40
  5. Step 5: Solve for x
    x = 292,338,351.40/19,703.87
  6. Step 6: Final answer
    x = 14,836.60

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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.