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Finding the Fourth Proportional to 12,612.56, 18,890.09 and 6,043.42

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Solution

The fourth proportional to 12,612.56, 18,890.09 and 6,043.42 is: 9,051.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,612.56 : 18,890.09 = 6,043.42 : x
  2. Step 2: Convert to fraction form
    12,612.56/18,890.09 = 6,043.42/x
  3. Step 3: Cross multiply
    12,612.56x = 18,890.09 × 6,043.42
  4. Step 4: Simplify right side
    12,612.56x = 114,160,623.04
  5. Step 5: Solve for x
    x = 114,160,623.04/12,612.56
  6. Step 6: Final answer
    x = 9,051.34

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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.