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Finding the Fourth Proportional to 18,474.75, 25,495.79 and 10,091.79

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Solution

The fourth proportional to 18,474.75, 25,495.79 and 10,091.79 is: 13,927.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,474.75 : 25,495.79 = 10,091.79 : x
  2. Step 2: Convert to fraction form
    18,474.75/25,495.79 = 10,091.79/x
  3. Step 3: Cross multiply
    18,474.75x = 25,495.79 × 10,091.79
  4. Step 4: Simplify right side
    18,474.75x = 257,298,108.11
  5. Step 5: Solve for x
    x = 257,298,108.11/18,474.75
  6. Step 6: Final answer
    x = 13,927.01

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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.