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Finding the Fourth Proportional to 23,905, 32,957.22 and 20,893.48

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Solution

The fourth proportional to 23,905, 32,957.22 and 20,893.48 is: 28,805.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,905 : 32,957.22 = 20,893.48 : x
  2. Step 2: Convert to fraction form
    23,905/32,957.22 = 20,893.48/x
  3. Step 3: Cross multiply
    23,905x = 32,957.22 × 20,893.48
  4. Step 4: Simplify right side
    23,905x = 688,591,016.93
  5. Step 5: Solve for x
    x = 688,591,016.93/23,905
  6. Step 6: Final answer
    x = 28,805.31

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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.