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Finding the Fourth Proportional to 18,893.72, 26,014.20 and 16,055.48

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Solution

The fourth proportional to 18,893.72, 26,014.20 and 16,055.48 is: 22,106.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,893.72 : 26,014.20 = 16,055.48 : x
  2. Step 2: Convert to fraction form
    18,893.72/26,014.20 = 16,055.48/x
  3. Step 3: Cross multiply
    18,893.72x = 26,014.20 × 16,055.48
  4. Step 4: Simplify right side
    18,893.72x = 417,670,467.82
  5. Step 5: Solve for x
    x = 417,670,467.82/18,893.72
  6. Step 6: Final answer
    x = 22,106.31

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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.