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Finding the Fourth Proportional to 7,674.97, 11,514.89 and 2,744.50

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Solution

The fourth proportional to 7,674.97, 11,514.89 and 2,744.50 is: 4,117.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,674.97 : 11,514.89 = 2,744.50 : x
  2. Step 2: Convert to fraction form
    7,674.97/11,514.89 = 2,744.50/x
  3. Step 3: Cross multiply
    7,674.97x = 11,514.89 × 2,744.50
  4. Step 4: Simplify right side
    7,674.97x = 31,602,615.61
  5. Step 5: Solve for x
    x = 31,602,615.61/7,674.97
  6. Step 6: Final answer
    x = 4,117.62

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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.