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Finding the Fourth Proportional to 12,994.03, 19,491.53 and 5,876.91

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Solution

The fourth proportional to 12,994.03, 19,491.53 and 5,876.91 is: 8,815.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,994.03 : 19,491.53 = 5,876.91 : x
  2. Step 2: Convert to fraction form
    12,994.03/19,491.53 = 5,876.91/x
  3. Step 3: Cross multiply
    12,994.03x = 19,491.53 × 5,876.91
  4. Step 4: Simplify right side
    12,994.03x = 114,550,035.20
  5. Step 5: Solve for x
    x = 114,550,035.20/12,994.03
  6. Step 6: Final answer
    x = 8,815.59

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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.