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Finding the Fourth Proportional to 12,473.19, 18,709.79 and 5,890.32

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Solution

The fourth proportional to 12,473.19, 18,709.79 and 5,890.32 is: 8,835.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,473.19 : 18,709.79 = 5,890.32 : x
  2. Step 2: Convert to fraction form
    12,473.19/18,709.79 = 5,890.32/x
  3. Step 3: Cross multiply
    12,473.19x = 18,709.79 × 5,890.32
  4. Step 4: Simplify right side
    12,473.19x = 110,206,620.78
  5. Step 5: Solve for x
    x = 110,206,620.78/12,473.19
  6. Step 6: Final answer
    x = 8,835.48

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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.