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Finding the Fourth Proportional to 13,074.60, 18,046.06 and 8,042.06

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Solution

The fourth proportional to 13,074.60, 18,046.06 and 8,042.06 is: 11,099.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,074.60 : 18,046.06 = 8,042.06 : x
  2. Step 2: Convert to fraction form
    13,074.60/18,046.06 = 8,042.06/x
  3. Step 3: Cross multiply
    13,074.60x = 18,046.06 × 8,042.06
  4. Step 4: Simplify right side
    13,074.60x = 145,127,497.28
  5. Step 5: Solve for x
    x = 145,127,497.28/13,074.60
  6. Step 6: Final answer
    x = 11,099.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.