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Finding the Fourth Proportional to 18,161.90, 25,064.16 and 10,204.10

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Solution

The fourth proportional to 18,161.90, 25,064.16 and 10,204.10 is: 14,082.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,161.90 : 25,064.16 = 10,204.10 : x
  2. Step 2: Convert to fraction form
    18,161.90/25,064.16 = 10,204.10/x
  3. Step 3: Cross multiply
    18,161.90x = 25,064.16 × 10,204.10
  4. Step 4: Simplify right side
    18,161.90x = 255,757,224.65
  5. Step 5: Solve for x
    x = 255,757,224.65/18,161.90
  6. Step 6: Final answer
    x = 14,082.08

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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.