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Finding the Fourth Proportional to 14,530.25, 20,051.75 and 7,906.25

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Solution

The fourth proportional to 14,530.25, 20,051.75 and 7,906.25 is: 10,910.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,530.25 : 20,051.75 = 7,906.25 : x
  2. Step 2: Convert to fraction form
    14,530.25/20,051.75 = 7,906.25/x
  3. Step 3: Cross multiply
    14,530.25x = 20,051.75 × 7,906.25
  4. Step 4: Simplify right side
    14,530.25x = 158,534,108.91
  5. Step 5: Solve for x
    x = 158,534,108.91/14,530.25
  6. Step 6: Final answer
    x = 10,910.63

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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.