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Finding the Fourth Proportional to 8,487.94, 11,713.36 and 4,761.94

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Solution

The fourth proportional to 8,487.94, 11,713.36 and 4,761.94 is: 6,571.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487.94 : 11,713.36 = 4,761.94 : x
  2. Step 2: Convert to fraction form
    8,487.94/11,713.36 = 4,761.94/x
  3. Step 3: Cross multiply
    8,487.94x = 11,713.36 × 4,761.94
  4. Step 4: Simplify right side
    8,487.94x = 55,778,293.71
  5. Step 5: Solve for x
    x = 55,778,293.71/8,487.94
  6. Step 6: Final answer
    x = 6,571.48

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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.