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Finding the Fourth Proportional to 11,805.52, 17,708.12 and 4,019.76

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Solution

The fourth proportional to 11,805.52, 17,708.12 and 4,019.76 is: 6,029.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,805.52 : 17,708.12 = 4,019.76 : x
  2. Step 2: Convert to fraction form
    11,805.52/17,708.12 = 4,019.76/x
  3. Step 3: Cross multiply
    11,805.52x = 17,708.12 × 4,019.76
  4. Step 4: Simplify right side
    11,805.52x = 71,182,392.45
  5. Step 5: Solve for x
    x = 71,182,392.45/11,805.52
  6. Step 6: Final answer
    x = 6,029.59

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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.