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Finding the Fourth Proportional to 13,042.15, 17,998.44 and 7,376.92

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Solution

The fourth proportional to 13,042.15, 17,998.44 and 7,376.92 is: 10,180.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,042.15 : 17,998.44 = 7,376.92 : x
  2. Step 2: Convert to fraction form
    13,042.15/17,998.44 = 7,376.92/x
  3. Step 3: Cross multiply
    13,042.15x = 17,998.44 × 7,376.92
  4. Step 4: Simplify right side
    13,042.15x = 132,773,052.00
  5. Step 5: Solve for x
    x = 132,773,052.00/13,042.15
  6. Step 6: Final answer
    x = 10,180.30

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Double scale
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Similar ratio
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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.