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Finding the Fourth Proportional to 18,161.64, 25,061.92 and 10,094.80

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Solution

The fourth proportional to 18,161.64, 25,061.92 and 10,094.80 is: 13,930.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,161.64 : 25,061.92 = 10,094.80 : x
  2. Step 2: Convert to fraction form
    18,161.64/25,061.92 = 10,094.80/x
  3. Step 3: Cross multiply
    18,161.64x = 25,061.92 × 10,094.80
  4. Step 4: Simplify right side
    18,161.64x = 252,995,070.02
  5. Step 5: Solve for x
    x = 252,995,070.02/18,161.64
  6. Step 6: Final answer
    x = 13,930.19

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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.