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Finding the Fourth Proportional to 8,786.88, 13,185.18 and 4,893.48

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Solution

The fourth proportional to 8,786.88, 13,185.18 and 4,893.48 is: 7,342.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.88 : 13,185.18 = 4,893.48 : x
  2. Step 2: Convert to fraction form
    8,786.88/13,185.18 = 4,893.48/x
  3. Step 3: Cross multiply
    8,786.88x = 13,185.18 × 4,893.48
  4. Step 4: Simplify right side
    8,786.88x = 64,521,414.63
  5. Step 5: Solve for x
    x = 64,521,414.63/8,786.88
  6. Step 6: Final answer
    x = 7,342.93

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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.