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Finding the Fourth Proportional to 12,894.88, 19,352.04 and 5,974.24

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Solution

The fourth proportional to 12,894.88, 19,352.04 and 5,974.24 is: 8,965.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,894.88 : 19,352.04 = 5,974.24 : x
  2. Step 2: Convert to fraction form
    12,894.88/19,352.04 = 5,974.24/x
  3. Step 3: Cross multiply
    12,894.88x = 19,352.04 × 5,974.24
  4. Step 4: Simplify right side
    12,894.88x = 115,613,731.45
  5. Step 5: Solve for x
    x = 115,613,731.45/12,894.88
  6. Step 6: Final answer
    x = 8,965.86

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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.