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Finding the Fourth Proportional to 30,042.74, 45,063.62 and 8,982.83

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Solution

The fourth proportional to 30,042.74, 45,063.62 and 8,982.83 is: 13,474.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,042.74 : 45,063.62 = 8,982.83 : x
  2. Step 2: Convert to fraction form
    30,042.74/45,063.62 = 8,982.83/x
  3. Step 3: Cross multiply
    30,042.74x = 45,063.62 × 8,982.83
  4. Step 4: Simplify right side
    30,042.74x = 404,798,792.73
  5. Step 5: Solve for x
    x = 404,798,792.73/30,042.74
  6. Step 6: Final answer
    x = 13,474.10

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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.