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Finding the Fourth Proportional to 14,893.88, 20,556.41 and 8,845.47

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Solution

The fourth proportional to 14,893.88, 20,556.41 and 8,845.47 is: 12,208.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,893.88 : 20,556.41 = 8,845.47 : x
  2. Step 2: Convert to fraction form
    14,893.88/20,556.41 = 8,845.47/x
  3. Step 3: Cross multiply
    14,893.88x = 20,556.41 × 8,845.47
  4. Step 4: Simplify right side
    14,893.88x = 181,831,063.74
  5. Step 5: Solve for x
    x = 181,831,063.74/14,893.88
  6. Step 6: Final answer
    x = 12,208.45

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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.