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Finding the Fourth Proportional to 8,245.97, 12,368.97 and 3,866.50

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Solution

The fourth proportional to 8,245.97, 12,368.97 and 3,866.50 is: 5,799.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,245.97 : 12,368.97 = 3,866.50 : x
  2. Step 2: Convert to fraction form
    8,245.97/12,368.97 = 3,866.50/x
  3. Step 3: Cross multiply
    8,245.97x = 12,368.97 × 3,866.50
  4. Step 4: Simplify right side
    8,245.97x = 47,824,637.97
  5. Step 5: Solve for x
    x = 47,824,637.97/8,245.97
  6. Step 6: Final answer
    x = 5,799.76

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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.