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Finding the Fourth Proportional to 8,674.97, 12,975.37 and 7,241.49

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Solution

The fourth proportional to 8,674.97, 12,975.37 and 7,241.49 is: 10,831.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,674.97 : 12,975.37 = 7,241.49 : x
  2. Step 2: Convert to fraction form
    8,674.97/12,975.37 = 7,241.49/x
  3. Step 3: Cross multiply
    8,674.97x = 12,975.37 × 7,241.49
  4. Step 4: Simplify right side
    8,674.97x = 93,960,994.00
  5. Step 5: Solve for x
    x = 93,960,994.00/8,674.97
  6. Step 6: Final answer
    x = 10,831.28

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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.